Adjectives Starting With I

Here's the list of all the 1795 Adjectives Starting With I in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Adjectives (with Definitions and Examples)
in
1. holding office
2. directed or bound inward
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international
1. concerning or belonging to all or at least two or more nations
2. from or between other countries
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important
1. of great significance or value
2. important in effect or meaning
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individual
1. separate and distinct from others of the same kind
2. characteristic of or meant for a single person or thing
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included
1. enclosed in the same envelope or package
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inside
1. relating to or being on the side closer to the center or within a defined space
2. being or applying to the inside of a building
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industrial
1. of or relating to or resulting from industry
2. having highly developed industries
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independent
1. free from external control and constraint
2. (of a clause) capable of standing syntactically alone as a complete sentence
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involved
1. entangled or hindered as if e.g. in mire
2. emotionally involved
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internal
1. happening or arising or located within some limits or especially surface
2. occurring within an institution or community
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interested
1. having or showing interest; especially curiosity or fascination or concern
2. involved in or affected by or having a claim to or share in
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increased
1. made greater in size or amount or degree
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interesting
1. arousing or holding the attention
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initial
1. occurring at the beginning
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informed
1. having much knowledge or education
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integrated
1. formed into a whole or introduced into another entity
2. not segregated; designated as available to all races or groups
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intended
1. future; betrothed
2. resulting from one's intentions
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interactive
1. capable of acting on or influencing each other
2. used especially of drugs or muscles that work together so the total effect is greater than the sum of the two (or more)
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identified
1. having the identity known or established
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iron
1. extremely robust
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instant
1. occurring with no delay
2. in or of the present month
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increasing
1. becoming greater or larger
2. (music) increasing in tempo and/or volume
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improved
1. made more desirable or valuable or profitable; especially made ready for use or marketing
2. become or made better in quality
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interior
1. situated within or suitable for inside a building
2. inside the country
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ideal
1. of or relating to the philosophical doctrine of the reality of ideas
2. conforming to an ultimate standard of perfection or excellence; embodying an ideal
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interracial
1. between races
2. involving or composed of different races
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immediate
1. having no intervening medium
2. of the present time and place
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initiative
1. serving to set in motion
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illegal
1. prohibited by law or by official or accepted rules
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intellectual
1. appealing to or using the intellect
2. involving intelligence rather than emotions or instinct
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implemented
1. forced or compelled or put in force
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improving
1. getting higher or more vigorous
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innovative
1. ahead of the times
2. being or producing something like nothing done or experienced or created before
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inner
1. located inward
2. innermost or essential
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incorporated
1. formed or united into a whole
2. organized and maintained as a legal corporation
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ill
1. affected by an impairment of normal physical or mental function
2. resulting in suffering or adversity
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impossible
1. totally unlikely
2. (used of persons or their behavior) not acceptable or reasonable
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institutional
1. relating to or constituting or involving an institution
2. organized as or forming an institution
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intelligent
1. having the capacity for thought and reason especially to a high degree
2. possessing sound knowledge
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indoor
1. located, suited for, or taking place within a building
2. within doors
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incident
1. falling or striking of light rays on something
2. (sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence
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intermediate
1. lying between two extremes in time or space or state
2. around the middle of a scale of evaluation
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infantMore Definitions →
induced
1. brought about or caused; not spontaneous
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informMore Definitions →
intent
1. giving or marked by complete attention to
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inspired
1. being of such surpassing excellence as to suggest inspiration by the gods
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incredible
1. beyond belief or understanding
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informational
1. relating to or having the nature of information
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inclusive
1. including much or everything; and especially including stated limits
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intensive
1. tending to give force or emphasis
2. of agriculture; intended to increase productivity of a fixed area by expending more capital and labor
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imperial
1. relating to or associated with an empire
2. of or belonging to the British Imperial System of weights and measures
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instructional
1. of or relating to or used in instruction
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isolated
1. not close together in time
2. being or feeling set or kept apart from others
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interim
1. serving during an intermediate interval of time
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identical
1. (of twins) derived from a single egg or ovum
2. exactly alike; incapable of being perceived as different
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imposed
1. set forth authoritatively as obligatory
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impliedMore Definitions →
impressive
1. producing a strong effect
2. making a strong or vivid impression
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integral
1. of or denoted by an integer
2. existing as an essential constituent or characteristic
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imported
1. used of especially merchandise brought from a foreign source
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invalid
1. no longer valid
2. having no cogency or legal force
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indigenous
1. originating where it is found
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injured
1. harmed
2. emotionally hurt or upset or annoyed
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immune
1. relating to the condition of immunity
2. secure against
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infected
1. containing or resulting from disease-causing organisms
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incorrect
1. not correct; not in conformity with fact or truth
2. not in accord with established usage or procedure
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inventionMore Definitions →
intense
1. extremely sharp or severe
2. (of color) having the highest saturation
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informal
1. not formal
2. used of spoken and written language
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incentiveMore Definitions →
innocent
1. lacking intent or capacity to injure
2. free from sin
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inappropriate
1. not suitable for a particular occasion etc
2. not in keeping with what is correct or proper
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indie
1. (of pop groups) not affiliated with a major recording company
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ignored
1. disregarded
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indirect
1. having intervening factors or persons or influences
2. not as a direct effect or consequence
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integrateMore Definitions →
infrared
1. having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end
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incorporate
1. formed or united into a whole
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incoming
1. arriving at a place or position
2. entering upon a position of office vacated by another
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inherited
1. occurring among members of a family usually by heredity
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incomplete
1. not yet finished
2. not complete or total; not completed
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insured
1. covered by insurance
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infinite
1. having no limits or boundaries in time or space or extent or magnitude
2. (of verbs) not having tense, person, or number (as a participle or gerund or infinitive)
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instrumental
1. relating to or designed for or performed on musical instruments
2. serving or acting as a means or aid
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invisible
1. impossible or nearly impossible to see; imperceptible by the eye
2. not prominent or readily noticeable
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interstate
1. involving and relating to the mutual relations of states especially of the United States
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impressed
1. deeply or markedly affected or influenced
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informative
1. tending to increase knowledge or dissipate ignorance
2. serving to instruct or enlighten or inform
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italic
1. characterized by slanting characters
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infectious
1. easily spread
2. of or relating to infection
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idle
1. not in action or at work
2. without a basis in reason or fact
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intimate
1. marked by close acquaintance, association, or familiarity
2. concerning things deeply private and personal
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impaired
1. diminished in strength, quality, or utility
2. mentally or physically unfit
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introductory
1. serving to open or begin
2. serving as a base or starting point
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interpreted
1. understood in a certain way; made sense of
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inexpensive
1. relatively low in price or charging low prices
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inland
1. situated away from an area's coast or border
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inadequate
1. lacking the requisite qualities or resources to meet a task
2. of insufficient quantity to meet a need
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insufficient
1. of a quantity not able to fulfill a need or requirement
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inactive
1. (pathology) not progressing or increasing; or progressing slowly
2. (military) not involved in military operations
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inspirational
1. imparting a divine influence on the mind and soul
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inherent
1. existing as an essential constituent or characteristic
2. in the nature of something though not readily apparent
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initiateMore Definitions →
intuitive
1. spontaneously derived from or prompted by a natural tendency
2. obtained through intuition rather than from reasoning or observation
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insane
1. very foolish
2. afflicted with or characteristic of mental derangement
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intact
1. constituting the undiminished entirety; lacking nothing essential especially not damaged
2. (of a woman) having the hymen unbroken
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inevitable
1. incapable of being avoided or prevented
2. invariably occurring or appearing
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interdisciplinary
1. drawing from or characterized by participation of two or more fields of study
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invasive
1. involving invasion or aggressive attack
2. gradually intrusive without right or permission
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inconsistent
1. not capable of being made consistent or harmonious
2. not in agreement
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internMore Definitions →
implicit
1. implied though not directly expressed; inherent in the nature of something
2. being without doubt or reserve
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inflammatory
1. characterized or caused by inflammation
2. arousing to action or rebellion
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influential
1. having or exercising influence or power
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inspiring
1. stimulating or exalting to the spirit
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indigo
1. having a color between blue and violet
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irrelevant
1. having no bearing on or connection with the subject at issue
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inverse
1. reversed (turned backward) in order or nature or effect
2. opposite in nature or effect or relation to another quantity
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itineraryMore Definitions →
improper
1. not conforming to legality, moral law, or social convention
2. not appropriate for a purpose or occasion
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irregular
1. not occurring at a regular rate or fixed intervals
2. failing to meet a standard of manufacture due to an imperfection
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incremental
1. increasing gradually by regular degrees or additions
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incidental
1. not of prime or central importance
2. occurring with or following as a consequence
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identifiable
1. capable of being identified
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inviting
1. attractive and tempting
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investigative
1. designed to find information or ascertain facts
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intrinsic
1. belonging to a thing by its very nature
2. situated within or belonging solely to the organ or body part on which it acts
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ignorant
1. uneducated in general; lacking knowledge or sophistication
2. uneducated in the fundamentals of a given art or branch of learning; lacking knowledge of a specific field
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insightful
1. exhibiting insight or clear and deep perception
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inaccurate
1. erroneous
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inbound
1. directed or moving inward or toward a center
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invaluable
1. having incalculable monetary, intellectual, or spiritual worth
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inclined
1. having made preparations
2. (often followed by `to') having a preference, disposition, or tendency
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intercontinental
1. extending or taking place between or among continents
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illuminated
1. provided with artificial light
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inflatable
1. designed to be filled with air or gas
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imperative
1. requiring attention or action
2. relating to verbs in the imperative mood
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inferior
1. lower than a given reference point
2. falling short of some prescribed norm
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indicative
1. relating to the mood of verbs that is used simple in declarative statements
2. (usually followed by `of') pointing out or revealing clearly
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incumbent
1. lying or leaning on something else
2. necessary (for someone) as a duty or responsibility; morally binding
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interrupted
1. discontinued temporarily
2. intermittently stopping and starting
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invitational
1. pertaining to or characteristic of an invitation
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interpersonal
1. occurring among or involving several people
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invariant
1. unaffected by a designated operation or transformation
2. unvarying in nature
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imposing
1. impressive in size, manner, or appearance
2. used of a person's appearance or behavior; befitting an eminent person
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intestinal
1. of or relating to or inside the intestines
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immense
1. unusually great in size or amount or degree or especially extent or scope
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impacted
1. wedged or packed in together
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imaginary
1. not based on fact; existing only in the imagination
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intriguing
1. disturbingly provocative
2. capable of arousing interest or curiosity
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immortal
1. not subject to death
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ironyMore Definitions →
intentional
1. characterized by conscious design or purpose
2. done or made or performed with purpose and intent
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inorganic
1. relating or belonging to the class of compounds not having a carbon basis
2. lacking the properties characteristic of living organisms
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isolateMore Definitions →
infamous
1. known widely and usually unfavorably
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informingMore Definitions →
incompatible
1. not compatible
2. used especially of drugs or muscles that counteract or neutralize each other's effect
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ineffective
1. not producing an intended effect
2. lacking in power or forcefulness
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imminent
1. close in time; about to occur
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inaugural
1. occurring at or characteristic of a formal investiture or induction
2. serving to set in motion
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intermittent
1. stopping and starting at irregular intervals
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ideological
1. of or pertaining to or characteristic of an orientation that characterizes the thinking of a group or nation
2. concerned with or suggestive of ideas
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imitation
1. not genuine or real; being an imitation of the genuine article
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instinct
1. (followed by `with') deeply filled or permeated
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indispensable
1. not to be dispensed with; essential
2. absolutely necessary; vitally necessary
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illicit
1. contrary to accepted morality (especially sexual morality) or convention
2. contrary to or forbidden by law
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ionic
1. containing or involving or occurring in the form of ions
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ironic
1. humorously sarcastic or mocking
2. characterized by often poignant difference or incongruity between what is expected and what actually is
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intangible
1. hard to pin down or identify
2. lacking substance or reality; incapable of being touched or seen
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inverted
1. being in such a position that top and bottom are reversed
2. (of a plant ovule) completely inverted; turned back 180 degrees on its stalk
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intracellular
1. located or occurring within a cell or cells
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intravenous
1. within or by means of a vein
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infectMore Definitions →
imaginative
1. (used of persons or artifacts) marked by independence and creativity in thought or action
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impartial
1. showing lack of favoritism
2. free from undue bias or preconceived opinions
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inward
1. directed or moving inward or toward a center
2. relating to or existing in the mind or thoughts
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insecure
1. not firm or firmly fixed; likely to fail or give way
2. lacking in security or safety
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intricate
1. having many complexly arranged elements; elaborate
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irrespectiveMore Definitions →
insignificant
1. devoid of importance, meaning, or force
2. signifying nothing
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icy
1. devoid of warmth and cordiality; expressive of unfriendliness or disdain
2. extremely cold
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individualized
1. made for or directed or adjusted to a particular individual
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incapable
1. not being susceptible to or admitting of something (usually followed by `of')
2. not meeting requirements
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imprisoned
1. being in captivity
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inefficient
1. lacking the ability or skill to perform effectively; inadequate
2. not producing desired results; wasteful
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inhibited
1. held back or restrained or prevented
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imperfect
1. wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings
2. not perfect; defective or inadequate
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interpretive
1. that provides interpretation
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intermediaryMore Definitions →
illustrative
1. clarifying by use of examples
2. serving to demonstrate
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indefinite
1. not decided or not known
2. vague or not clearly defined or stated
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irrational
1. not consistent with or using reason
2. real but not expressible as the quotient of two integers
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impending
1. close in time; about to occur
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involuntary
1. not subject to the control of the will
2. controlled by the autonomic nervous system; without conscious control
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immature
1. characteristic of a lack of maturity
2. (used of living things especially persons) in an early period of life or development or growth
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ineligible
1. prohibited by official rules
2. not eligible
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insensitive
1. not responsive to physical stimuli
2. deficient in human sensibility; not mentally or morally sensitive
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irresistible
1. impossible to resist; overpowering
2. overpoweringly attractive
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iterative
1. marked by iteration
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interchangeable
1. (mathematics, logic) such that the arguments or roles can be interchanged
2. capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability
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immaculate
1. completely neat and clean
2. free from stain or blemish
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integrative
1. combining and coordinating diverse elements into a whole
2. tending to consolidate
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itchingMore Definitions →
itchy
1. nervous and unable to relax
2. causing an irritating cutaneous sensation; being affect with an itch
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instantaneous
1. occurring with no delay
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irritating
1. causing irritation or annoyance
2. (used of physical stimuli) serving to stimulate or excite
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indifferent
1. marked by a lack of interest
2. showing no care or concern in attitude or action
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irresponsible
1. showing lack of care for consequences
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inhabited
1. having inhabitants; lived in
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interfering
1. intrusive in a meddling or offensive manner
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implicated
1. culpably involved
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inhibitory
1. restrictive of action
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incompetent
1. legally not qualified or sufficient
2. not qualified or suited for a purpose
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inscribed
1. written (by handwriting, printing, engraving, or carving) on or in a surface
2. cut or impressed into a surface
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inflated
1. enlarged beyond truth or reasonableness
2. pretentious (especially with regard to language or ideals)
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inductive
1. arising from inductance
2. of reasoning; proceeding from particular facts to a general conclusion
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invading
1. involving invasion or aggressive attack
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immoral
1. not adhering to ethical or moral principles
2. deliberately violating accepted principles of right and wrong
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innate
1. being talented through inherited qualities
2. present at birth but not necessarily hereditary; acquired during fetal development
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interconnected
1. reciprocally connected
2. operating as a unit
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intrepid
1. invulnerable to fear or intimidation
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insulting
1. expressing extreme contempt
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intervening
1. occurring or falling between events or points in time
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inaccessible
1. capable of being reached only with great difficulty or not at all
2. not capable of being obtained
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intrusive
1. tending to intrude (especially upon privacy)
2. of rock material; forced while molten into cracks between layers of other rock
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interfaith
1. involving persons of different religious faiths
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industrialized
1. made industrial; converted to industrialism
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inbred
1. produced by inbreeding
2. normally existing at birth
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irritable
1. easily irritated or annoyed
2. abnormally sensitive to a stimulus
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inventive
1. (used of persons or artifacts) marked by independence and creativity in thought or action
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irreversible
1. incapable of being reversed
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improbable
1. having a probability too low to inspire belief
2. too improbable to admit of belief
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inert
1. unable to move or resist motion
2. having only a limited ability to react chemically; chemically inactive
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illuminating
1. tending to increase knowledge or dissipate ignorance
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insistingMore Definitions →
intensified
1. made more intense
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inexperienced
1. lacking practical experience or training
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intercollegiate
1. used of competition between colleges or universities
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implanted
1. (used especially of ideas or principles) deeply rooted; firmly fixed or held
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impatient
1. (usually followed by `to') full of eagerness
2. restless or short-tempered under delay or opposition
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illuminateMore Definitions →
ingenious
1. showing inventiveness and skill
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imaginable
1. capable of being imagined
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intimidating
1. discouraging through fear
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ischemic
1. relating to or affected by ischemia
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illogical
1. lacking in correct logical relation
2. lacking orderly continuity
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impractical
1. not practical or realizable; speculative
2. not practical; not workable or not given to practical matters
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intoxicated
1. stupefied or excited by a chemical substance (especially alcohol)
2. as if under the influence of alcohol
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impoverished
1. poor enough to need help from others
2. destroyed financially
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indecent
1. offensive to good taste especially in sexual matters
2. not in keeping with accepted standards of what is right or proper in polite society
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interstellar
1. between or among stars
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incandescent
1. emitting light as a result of being heated
2. characterized by ardent emotion or intensity or brilliance
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inhuman
1. without compunction or human feeling
2. belonging to or resembling something nonhuman
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isolating
1. relating to or being a language in which each word typically expresses a distinct idea and part of speech and syntactical relations are determined almost exclusively by word order and particles
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irritated
1. aroused to impatience or anger
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intramural
1. carried on within the bounds of an institution or community
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indebted
1. owing gratitude or recognition to another for help or favors etc
2. under a legal obligation to someone
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invincible
1. incapable of being overcome or subdued
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institutionalized
1. given the character of an institution or incorporated into a structured and usually well-established system
2. officially placed in or committed to a specialized institution
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interstitial
1. of or relating to interstices
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infrequent
1. not frequent; not occurring regularly or at short intervals
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impeccable
1. without fault or error
2. not capable of sin
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intimidated
1. made timid or fearful as by threats
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illiterate
1. not able to read or write
2. lacking culture, especially in language and literature
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improvised
1. done or made using whatever is available
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inconvenient
1. not conveniently timed
2. not suited to your comfort, purpose or needs
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instructive
1. serving to instruct or enlighten or inform
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iconic
1. relating to or having the characteristics of an icon
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invertebrate
1. lacking a backbone or spinal column
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infernal
1. characteristic of or resembling Hell
2. of or pertaining to or characteristic of a very uncontrolled and intense fire
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inquiring
1. given to inquiry
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innumerable
1. too numerous to be counted
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illustrious
1. widely known and esteemed
2. having or conferring glory
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interoperable
1. able to exchange and use information
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irrevocable
1. incapable of being retracted or revoked
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interlocking
1. linked or locked closely together as by dovetailing
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iguanaMore Definitions →
isotopic
1. of or relating to or having the relation of an isotope
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illegitimate
1. contrary to or forbidden by law
2. of marriages and offspring; not recognized as lawful
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indistinguishable
1. exactly alike; incapable of being perceived as different
2. not capable of being distinguished or differentiated
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imperialist
1. of or relating to imperialism
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irreducible
1. incapable of being made smaller or simpler
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impervious
1. not admitting of passage or capable of being affected
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inertial
1. of or relating to inertia
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intolerable
1. incapable of being tolerated or endured
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indigent
1. poor enough to need help from others
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interrelated
1. reciprocally connected
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incoherent
1. unable to express yourself clearly or fluently
2. without logical or meaningful connection
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indeterminate
1. of uncertain or ambiguous nature
2. (of a quantity) having no definite value, as an equation that cannot be solved
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immunological
1. of or relating to immunology
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intolerant
1. unwilling to tolerate difference of opinion
2. narrow-minded about cherished opinions
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insurgent
1. in opposition to a civil authority or government
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impressionist
1. relating to or characteristic of Impressionism
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impromptu
1. with little or no preparation or forethought
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infidelMore Definitions →
idyllic
1. excellent and delightful in all respects
2. suggestive of an idyll; charmingly simple and serene
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isotropic
1. invariant with respect to direction
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insoluble
1. without hope of solution
2. (of a substance) incapable of being dissolved
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interdependent
1. mutually dependent
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inaudible
1. impossible to hear; imperceptible by the ear
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inflationary
1. associated with or tending to cause increases in inflation
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interwoven
1. linked or locked closely together as by dovetailing
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idiotic
1. insanely irresponsible
2. so unreasonable as to invite derision
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intracranial
1. within the skull
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idealistic
1. of or relating to the philosophical doctrine of the reality of ideas
2. of high moral or intellectual value; elevated in nature or style
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injectable
1. (used of drugs) capable of being injected
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incomprehensible
1. incapable of being explained or accounted for
2. difficult to understand
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incomparable
1. such that comparison is impossible; unsuitable for comparison or lacking features that can be compared
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intrastate
1. relating to or existing within the boundaries of a state
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insidious
1. beguiling but harmful
2. intended to entrap
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immutable
1. not subject or susceptible to change or variation in form or quality or nature
2. constant and unchanging
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ignited
1. set afire
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inlaid
1. adorned by inlays
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inadvertent
1. happening by chance or unexpectedly or unintentionally
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idiopathic
1. (of diseases) arising from an unknown cause
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insatiable
1. impossible to satisfy
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incarnate
1. possessing or existing in bodily form
2. invested with a bodily form especially of a human body
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idiosyncratic
1. peculiar to the individual
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impulsive
1. proceeding from natural feeling or impulse without external stimulus
2. without forethought
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insurrectionMore Definitions →
intoxicating
1. causing intoxication
2. extremely exciting as if by alcohol or a narcotic
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inseparable
1. not capable of being separated
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inshore
1. close to a shore
2. (of winds) coming from the sea toward the land
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isomorphic
1. having similar appearance but genetically different
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inept
1. not elegant or graceful in expression
2. generally incompetent and ineffectual
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immaterial
1. not pertinent to the matter under consideration
2. (often followed by `to') lacking importance; not mattering one way or the other
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inclement
1. (of weather or climate) severe
2. used of persons or behavior; showing no clemency or mercy
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impersonal
1. not relating to or responsive to individual persons
2. having no personal preference
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inflamed
1. resulting from inflammation; hot and swollen and reddened
2. lighted with red light as if with flames
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insolvent
1. unable to meet or discharge financial obligations
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indulgent
1. characterized by or given to yielding to the wishes of someone
2. tolerant or lenient
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inelastic
1. not elastic
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inflexible
1. incapable of adapting or changing to meet circumstances
2. incapable of change
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injurious
1. harmful to living things
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irreverent
1. showing lack of due respect or veneration
2. characterized by a lightly pert and exuberant quality
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immunologic
1. of or relating to immunology
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insular
1. relating to or characteristic of or situated on an island
2. suggestive of the isolated life of an island
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intractable
1. not tractable; difficult to manage or mold
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inconclusive
1. not conclusive; not putting an end to doubt or question
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incapacitated
1. lacking in or deprived of strength or power
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iridescent
1. varying in color when seen in different lights or from different angles
2. having a play of lustrous rainbow colors
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intersecting
1. crossed or intersected in the form of an X
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incisive
1. having or demonstrating ability to recognize or draw fine distinctions
2. suitable for cutting or piercing
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inapplicable
1. not capable of being applied
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igneous
1. produced under conditions involving intense heat
2. produced by the action of fire or intense heat
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inundated
1. covered with water
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isometric
1. related by an isometry
2. of or involving muscular contraction in which tension increases while length remains constant
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impure
1. combined with extraneous elements
2. (used of persons or behaviors) immoral or obscene
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innermost
1. being deepest within the self
2. situated or occurring farthest within
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irritantMore Definitions →
inconceivable
1. totally unlikely
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inexplicable
1. incapable of being explained or accounted for
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incognito
1. with your identity concealed
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infantile
1. of or relating to infants or infancy
2. indicating a lack of maturity
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invigorating
1. imparting strength and vitality
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infallible
1. incapable of failure or error
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incessant
1. uninterrupted in time and indefinitely long continuing
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intelligible
1. capable of being apprehended or understood
2. well articulated or enunciated, and loud enough to be heard distinctly
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ionized
1. converted totally or partly into ions
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intensifying
1. increasing in strength or intensity
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immunized
1. having been rendered unsusceptible to a disease
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inquisitive
1. showing curiosity
2. inquiring or appearing to inquire
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itinerant
1. traveling from place to place to work
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instinctive
1. unthinking; prompted by (or as if by) instinct
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interlaced
1. having a pattern of fretwork or latticework
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indiscriminate
1. not marked by fine distinctions
2. failing to make or recognize distinctions
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interpretative
1. that provides interpretation
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introspective
1. given to examining own sensory and perceptual experiences
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infective
1. able to cause disease
2. caused by infection or capable of causing infection
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idealized
1. exalted to an ideal perfection or excellence
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inadmissible
1. not deserving to be admitted
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innocuous
1. not causing disapproval
2. lacking intent or capacity to injure
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interplanetary
1. between or among planets
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invalidated
1. deprived of legal force
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intergalactic
1. between or among galaxies
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immovable
1. not able or intended to be moved
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idlingMore Definitions →
immunosuppressive
1. of or relating to a substance that lowers the body's normal immune response and induces immunosuppression
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inanimate
1. appearing dead; not breathing or having no perceptible pulse
2. belonging to the class of nouns denoting nonliving things
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indestructible
1. very long lasting
2. not easily destroyed
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indulgingMore Definitions →
illegible
1. (of handwriting, print, etc.) not legible
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irreparable
1. impossible to repair, rectify, or amend
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insidesMore Definitions →
inhumane
1. lacking and reflecting lack of pity or compassion
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inoperable
1. not able to perform its normal function
2. not suitable for surgery
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incurable
1. incapable of being cured
2. unalterable in disposition or habits
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inescapable
1. impossible to avoid or evade
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impotent
1. lacking power or ability
2. (of a male) unable to copulate
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insurmountable
1. not capable of being surmounted or overcome
2. impossible to surmount
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impenetrable
1. permitting little if any light to pass through because of denseness of matter
2. impossible to understand
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industrialised
1. made industrial; converted to industrialism
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inane
1. extremely silly or stupid
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interdepartmental
1. between or among departments
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imbued
1. (followed by `with') deeply filled or permeated
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impeded
1. made difficult or slow
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insomniac
1. experiencing or accompanied by sleeplessness
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impassioned
1. characterized by intense emotion
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inalienable
1. not subject to forfeiture
2. incapable of being repudiated or transferred to another
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illusory
1. based on or having the nature of an illusion
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intertidal
1. of or relating to the littoral area above the low-tide mark
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indelible
1. cannot be removed or erased
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interfacial
1. relating to or situated at an interface
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industrious
1. characterized by hard work and perseverance
2. working hard to promote an enterprise
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ingrained
1. (used especially of ideas or principles) deeply rooted; firmly fixed or held
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inboard
1. located within the hull or nearest the midline of a vessel or aircraft
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indignant
1. angered at something unjust or wrong
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inflectionMore Definitions →
imprecise
1. not precise
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incendiary
1. involving deliberate burning of property
2. arousing to action or rebellion
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insistent
1. repetitive and persistent
2. demanding attention
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idealistMore Definitions →
icky
1. very bad
2. soft and sticky
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infertile
1. incapable of reproducing
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intrauterine
1. within the womb
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intramuscular
1. within a muscle
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incipient
1. only partly in existence; imperfectly formed
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irreplaceable
1. impossible to replace
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implausible
1. having a quality that provokes disbelief
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inoperative
1. not working or taking effect
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inordinate
1. beyond normal limits
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individualistic
1. marked by or expressing individuality
2. with minimally restricted freedom in commerce
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inconsequential
1. lacking worth or importance
2. not following logically as a consequence
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impeding
1. preventing movement
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irate
1. feeling or showing extreme anger
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infinitesimal
1. infinitely or immeasurably small
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infeasible
1. not capable of being carried out or put into practice
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infirm
1. lacking bodily or muscular strength or vitality
2. lacking firmness of will or character or purpose
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indescribable
1. defying expression or description
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inhomogeneous
1. not homogeneous
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inheriting
1. having the legal right to inherit
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indivisible
1. impossible of undergoing division
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immobile
1. securely fixed in place
2. not capable of movement or of being moved
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indisputable
1. not open to question; obviously true
2. impossible to doubt or dispute
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impracticable
1. not capable of being carried out or put into practice
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interred
1. placed in a grave
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immeasurable
1. beyond calculation or measure
2. impossible to measure
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invertible
1. having an additive or multiplicative inverse
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inimitable
1. defying imitation; matchless
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ineffectual
1. not producing an intended effect
2. producing no result or effect
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intercellular
1. located between cells
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incriminating
1. charging or suggestive of guilt or blame
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isothermal
1. of a process or change taking place at constant temperature
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ingrown
1. growing abnormally into the flesh
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inessential
1. not basic or fundamental
2. not absolutely necessary
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inequitable
1. not equitable or fair
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investigatory
1. designed to find information or ascertain facts
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inexhaustible
1. incapable of being entirely consumed or used up
2. that cannot be entirely consumed or used up
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inborn
1. present at birth but not necessarily hereditary; acquired during fetal development
2. normally existing at birth
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insurable
1. capable of being insured or eligible to be insured
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inconsiderate
1. without proper consideration or reflection
2. lacking regard for the rights or feelings of others
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ironclad
1. sheathed in iron plates for protection
2. inflexibly entrenched and unchangeable
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inky
1. of the color of black ink
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ischaemic
1. relating to or affected by ischemia
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interlocutory
1. consisting of dialogue
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internationalist
1. influenced by or advocating internationalism
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inscrutable
1. of an obscure nature
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impermissible
1. not permitted
2. not allowable
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inguinal
1. of or relating to or near the groin
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incompressible
1. incapable of being compressed; resisting compression
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irreconcilable
1. impossible to reconcile
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interscholastic
1. used of competition or cooperation between secondary schools
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inflected
1. (of the voice) altered in tone or pitch
2. showing alteration in form (especially by the addition of affixes)
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impermeable
1. preventing especially liquids to pass or diffuse through
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iffy
1. subject to accident or chance or change
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incised
1. sharply and deeply indented
2. cut into with a sharp instrument
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indistinct
1. not clearly defined or easy to perceive or understand
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ironed
1. (of linens or clothes) smoothed with a hot iron
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infinitiveMore Definitions →
inconspicuous
1. not prominent or readily noticeable
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instrumentalistMore Definitions →
inbuilt
1. existing as an essential constituent or characteristic
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irrefutable
1. impossible to deny or disprove
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infuriated
1. marked by extreme anger
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incongruous
1. lacking in harmony or compatibility or appropriateness
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inattentive
1. not showing due care or attention
2. showing a lack of attention or care
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inexcusable
1. without excuse or justification
2. not excusable
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inferential
1. relating to or having the nature of illation or inference
2. of reasoning; proceeding from general premisses to a necessary and specific conclusion
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insolent
1. marked by casual disrespect
2. unrestrained by convention or propriety
More Definitions →
incredulous
1. not disposed or willing to believe; unbelieving
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incensed
1. angered at something unjust or wrong
More Definitions →
iliac
1. of or relating to the ilium
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immemorial
1. long past; beyond the limits of memory or tradition or recorded history
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indwelling
1. existing or residing as an inner activating spirit or force or principle
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intermolecular
1. existing or acting between molecules
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impolite
1. not polite
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insipid
1. lacking taste or flavor or tang
2. lacking interest or significance or impact
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interminable
1. tiresomely long; seemingly without end
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introverted
1. given to examining own sensory and perceptual experiences
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indomitable
1. impossible to subdue
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indefensible
1. (of theories etc) incapable of being defended or justified
2. not able to be protected against attack
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intramolecular
1. within the molecule; occurring by a reaction between different parts of the same molecule
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inexorable
1. not to be placated or appeased or moved by entreaty
2. impervious to pleas, persuasion, requests, reason
More Definitions →
influent
1. flowing inward
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impressionable
1. easily impressed or influenced
More Definitions →
idiomatic
1. of or relating to or conforming to idiom
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infuriating
1. extremely annoying or displeasing
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isotonic
1. (used of solutions) having the same or equal osmotic pressure
2. relating to or characterized by the equal intervals of a musical scale
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inexact
1. not exact
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indentured
1. bound by contract
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intestate
1. having made no legally valid will before death or not disposed of by a legal will
More Definitions →
insincere
1. lacking sincerity
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ineffable
1. defying expression or description
2. too sacred to be uttered
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individualist
1. marked by or expressing individuality
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indecisive
1. characterized by lack of decision and firmness
2. not definitely settling something
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irrepressible
1. impossible to repress or control
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impassable
1. incapable of being passed
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ipsilateral
1. on or relating to the same side (of the body)
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inhospitable
1. unfavorable to life or growth
2. not hospitable
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impelled
1. urged or forced to action through moral pressure
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individualised
1. made for or directed or adjusted to a particular individual
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intruding
1. projecting inward
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incestuous
1. resembling incest as by excessive intimacy
2. relating to or involving incest
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institutionalised
1. given the character of an institution or incorporated into a structured and usually well-established system
2. officially placed in or committed to a specialized institution
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immunocompromised
1. unable to develop a normal immune response usually because of malnutrition or immunodeficiency or immunosuppressive therapy
More Definitions →
incommunicado
1. without the means or right to communicate
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incalculable
1. not able to be computed or enumerated
2. too much to be measured
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indolent
1. disinclined to work or exertion
2. (of tumors, e.g.) slow to heal or develop and usually painless
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interrogative
1. relating to verbs in the so-called interrogative mood
2. relating to the use of or having the nature of an interrogation
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imprudent
1. not prudent or wise
2. lacking wise self-restraint
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infatuated
1. marked by foolish or unreasoning fondness
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intervertebral
1. pertaining to the space between two vertebrae
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impetuous
1. characterized by undue haste and lack of thought or deliberation
2. marked by violent force
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interspecific
1. arising or occurring between species
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invalidating
1. establishing as invalid or untrue
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impressionistic
1. of or relating to or based on an impression rather than on facts or reasoning
2. relating to or characteristic of Impressionism
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immanent
1. of qualities that are spread throughout something
2. of a mental act performed entirely within the mind
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indictable
1. liable to be accused, or cause for such liability
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intransitive
1. designating a verb that does not require or cannot take a direct object
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imperceptible
1. impossible or difficult to perceive by the mind or senses
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indefatigable
1. showing sustained enthusiastic action with unflagging vitality
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introvertMore Definitions →
inimical
1. not friendly
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imperious
1. having or showing arrogant superiority to and disdain of those one views as unworthy
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implacable
1. incapable of being placated
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incontinent
1. not having control over urination and defecation
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invectiveMore Definitions →
invulnerable
1. immune to attack; impregnable
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insubstantial
1. lacking in nutritive value
2. lacking solidity or strength
More Definitions →
interlacing
1. linked or locked closely together as by dovetailing
More Definitions →
impious
1. lacking piety or reverence for a god
2. lacking due respect or dutifulness
More Definitions →
iatrogenic
1. induced by a physician's words or therapy (used especially of a complication resulting from treatment)
More Definitions →
isolationismMore Definitions →
isolationist
1. of or relating to isolationism
More Definitions →
illusive
1. based on or having the nature of an illusion
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inebriated
1. stupefied or excited by a chemical substance (especially alcohol)
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iambic
1. of or consisting of iambs
More Definitions →
inedible
1. not suitable for food
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inoffensive
1. not causing anger or annoyance
2. giving no offense
More Definitions →
inviolable
1. immune to attack; incapable of being tampered with
2. must be kept sacred
More Definitions →
insufferable
1. unbearably arrogant or conceited
2. too extreme to bear
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idempotent
1. unchanged in value following multiplication by itself
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interrogatory
1. relating to the use of or having the nature of an interrogation
More Definitions →
insecticidal
1. of or relating to insecticide
More Definitions →
invariable
1. not liable to or capable of change
More Definitions →
inspiratory
1. pertaining to the drawing in phase of respiration
More Definitions →
inarticulate
1. without or deprived of the use of speech or words
More Definitions →
invigorated
1. with restored energy
More Definitions →
interdenominational
1. occurring between or among or common to different churches or denominations
More Definitions →
intracerebral
1. within the brain
More Definitions →
imbecile
1. having a mental age of three to seven years
More Definitions →
inestimable
1. beyond calculation or measure
More Definitions →
ignoble
1. not of the nobility
2. completely lacking nobility in character or quality or purpose
More Definitions →
imitative
1. marked by or given to imitation
2. (of words) formed in imitation of a natural sound
More Definitions →
iconoclastic
1. characterized by attack on established beliefs or institutions
2. destructive of images used in religious worship; said of religions, such as Islam, in which the representation of living things is prohibited
More Definitions →
inhalant
1. inhaling or serving for inhalation
More Definitions →
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