10-Letter Words Starting With I
Here's the list of all the 1366 10-Letter Words 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 Words (with Definitions and Examples) | |
|---|---|
| individual | 1. a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential 2. a single organism More Definitions → |
| investment | 1. the act of investing; laying out money or capital in an enterprise with the expectation of profit 2. money that is invested with an expectation of profit More Definitions → |
| industrial | 1. of or relating to or resulting from industry 2. having highly developed industries More Definitions → |
| 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 More Definitions → |
| integrated | 1. formed into a whole or introduced into another entity 2. not segregated; designated as available to all races or groups More Definitions → |
| identified | 1. recognize as being; establish the identity of someone or something 2. give the name or identifying characteristics of; refer to by name or some other identifying characteristic property More Definitions → |
| increasing | 1. becoming greater or larger 2. (music) increasing in tempo and/or volume More Definitions → |
| importance | 1. the quality of being important and worthy of note 2. a prominent status More Definitions → |
| inspection | 1. a formal or official examination More Definitions → |
| initiative | 1. readiness to embark on bold new ventures 2. the first of a series of actions More Definitions → |
| instrument | 1. a device that requires skill for proper use 2. the means whereby some act is accomplished More Definitions → |
| innovation | 1. a creation (a new device or process) resulting from study and experimentation 2. the creation of something in the mind More Definitions → |
| innovative | 1. ahead of the times 2. being or producing something like nothing done or experienced or created before More Definitions → |
| instructor | 1. a person whose occupation is teaching More Definitions → |
| impossible | 1. something that cannot be done 2. totally unlikely More Definitions → |
| installing | 1. the act of installing something (as equipment) 2. set up for use More Definitions → |
| incredible | 1. beyond belief or understanding More Definitions → |
| impressive | 1. producing a strong effect 2. making a strong or vivid impression More Definitions → |
| indigenous | 1. originating where it is found More Definitions → |
| invitation | 1. a request (spoken or written) to participate or be present or take part in something 2. a tempting allurement More Definitions → |
| identifier | 1. a symbol that establishes the identity of the one bearing it More Definitions → |
| impression | 1. a vague idea in which some confidence is placed 2. an outward appearance More Definitions → |
| incomplete | 1. not yet finished 2. not complete or total; not completed More Definitions → |
| indication | 1. something that serves to indicate or suggest 2. the act of indicating or pointing out by name More Definitions → |
| interstate | 1. involving and relating to the mutual relations of states especially of the United States 2. one of the system of highways linking major cities in the 48 contiguous states of the United States More Definitions → |
| infectious | 1. easily spread 2. of or relating to infection More Definitions → |
| irrigation | 1. supplying dry land with water by means of ditches etc 2. (medicine) cleaning a wound or body organ by flushing or washing out with water or a medicated solution More Definitions → |
| internship | 1. the position of a medical intern More Definitions → |
| immunology | 1. the branch of medical science that studies the body's immune system More Definitions → |
| insulation | 1. the state of being isolated or detached 2. insulating material that reduces or prevents the transmission of heat or sound or electricity More Definitions → |
| incredibly | 1. not easy to believe 2. exceedingly; extremely More Definitions → |
| inadequate | 1. lacking the requisite qualities or resources to meet a task 2. of insufficient quantity to meet a need More Definitions → |
| illustrate | 1. clarify by giving an example of 2. depict with an illustration More Definitions → |
| ingredient | 1. a component of a mixture or compound 2. an abstract part of something More Definitions → |
| impairment | 1. the occurrence of a change for the worse 2. a symptom of reduced quality or strength More Definitions → |
| indirectly | 1. not in a forthright manner More Definitions → |
| inevitable | 1. an unavoidable event 2. incapable of being avoided or prevented More Definitions → |
| initiation | 1. a formal entry into an organization or position or office 2. the act of starting something for the first time; introducing something new More Definitions → |
| internally | 1. on or from the inside More Definitions → |
| inequality | 1. lack of equality More Definitions → |
| irrelevant | 1. having no bearing on or connection with the subject at issue More Definitions → |
| inhibition | 1. (psychology) the conscious exclusion of unacceptable thoughts or desires 2. the quality of being inhibited More Definitions → |
| incidental | 1. (frequently plural) an expense not budgeted or not specified 2. an item that is incidental More Definitions → |
| insightful | 1. exhibiting insight or clear and deep perception More Definitions → |
| inaccurate | 1. erroneous More Definitions → |
| invaluable | 1. having incalculable monetary, intellectual, or spiritual worth More Definitions → |
| inflatable | 1. designed to be filled with air or gas More Definitions → |
| imperative | 1. requiring attention or action 2. relating to verbs in the imperative mood More Definitions → |
| inevitably | 1. in such a manner as could not be otherwise 2. by necessity More Definitions → |
| indicative | 1. relating to the mood of verbs that is used simple in declarative statements 2. a mood (grammatically unmarked) that represents the act or state as an objective fact More Definitions → |
| intestinal | 1. of or relating to or inside the intestines More Definitions → |
| intriguing | 1. disturbingly provocative 2. capable of arousing interest or curiosity More Definitions → |
| initialize | 1. assign an initial value to a computer program 2. divide (a disk) into marked sectors so that it may store data More Definitions → |
| indictment | 1. a formal document written for a prosecuting attorney charging a person with some offense 2. an accusation of wrongdoing More Definitions → |
| indulgence | 1. an inability to resist the gratification of whims and desires 2. a disposition to yield to the wishes of someone More Definitions → |
| irritation | 1. the psychological state of being irritated or annoyed 2. a sudden outburst of anger More Definitions → |
| inhalation | 1. the act of inhaling; the drawing in of air (or other gases) as in breathing 2. a medication to be taken by inhaling it More Definitions → |
| inherently | 1. in an inherent manner More Definitions → |
| intangible | 1. assets that are saleable though not material or physical 2. hard to pin down or identify More Definitions → |
| ironically | 1. contrary to plan or expectation 2. in an ironic manner More Definitions → |
| injunction | 1. a formal command or admonition 2. (law) a judicial remedy issued in order to prohibit a party from doing or continuing to do a certain activity More Definitions → |
| imposition | 1. the act of imposing something (as a tax or an embargo) 2. an uncalled-for burden More Definitions → |
| imprisoned | 1. being in captivity More Definitions → |
| incubation | 1. maintaining something at the most favorable temperature for its development 2. (pathology) the phase in the development of an infection between the time a pathogen enters the body and the time the first symptoms appear More Definitions → |
| integrator | 1. a measuring instrument for measuring the area of an irregular plane figure More Definitions → |
| invocation | 1. a prayer asking God's help as part of a religious service 2. an incantation used in conjuring or summoning a devil More Definitions → |
| implicitly | 1. without doubting or questioning 2. without ever expressing so clearly More Definitions → |
| invariably | 1. without variation or change, in every case More Definitions → |
| infarction | 1. localized necrosis resulting from obstruction of the blood supply More Definitions → |
| indefinite | 1. not decided or not known 2. vague or not clearly defined or stated More Definitions → |
| irrational | 1. not consistent with or using reason 2. real but not expressible as the quotient of two integers More Definitions → |
| interferon | 1. an antiviral protein produced by cells that have been invaded by a virus; inhibits replication of the virus More Definitions → |
| improperly | 1. in an improper way More Definitions → |
| infinitely | 1. without bounds 2. continuing forever without end More Definitions → |
| ineligible | 1. prohibited by official rules 2. not eligible More Definitions → |
| insolvency | 1. the lack of financial resources More Definitions → |
| insecurity | 1. the state of being subject to danger or injury 2. the anxiety you experience when you feel vulnerable and insecure More Definitions → |
| immaculate | 1. completely neat and clean 2. free from stain or blemish More Definitions → |
| irritating | 1. causing irritation or annoyance 2. (used of physical stimuli) serving to stimulate or excite More Definitions → |
| implicated | 1. culpably involved More Definitions → |
| inhibitory | 1. restrictive of action More Definitions → |
| insurgency | 1. an organized rebellion aimed at overthrowing a constituted government through the use of subversion and armed conflict More Definitions → |
| interfaith | 1. involving persons of different religious faiths More Definitions → |
| ionization | 1. the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge) 2. the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas More Definitions → |
| improbable | 1. having a probability too low to inspire belief 2. too improbable to admit of belief More Definitions → |
| illuminate | 1. introduce light into 2. make free from confusion or ambiguity; make clear More Definitions → |
| imaginable | 1. capable of being imagined More Definitions → |
| inactivity | 1. the state of being inactive 2. a disposition to remain inactive or inert More Definitions → |
| informally | 1. without formality 2. with the use of colloquial expressions More Definitions → |
| intimately | 1. in a close manner 2. with great or especially intimate knowledge More Definitions → |
| insistence | 1. continual and persistent demands 2. the state of demanding notice or attention More Definitions → |
| imputation | 1. a statement attributing something dishonest (especially a criminal offense) 2. the attribution to a source or cause More Definitions → |
| intramural | 1. carried on within the bounds of an institution or community More Definitions → |
| incapacity | 1. lack of intellectual power 2. lack of physical or natural qualifications More Definitions → |
| invincible | 1. incapable of being overcome or subdued More Definitions → |
| infrequent | 1. not frequent; not occurring regularly or at short intervals More Definitions → |
| impeccable | 1. without fault or error 2. not capable of sin More Definitions → |
| illiterate | 1. a person unable to read 2. not able to read or write More Definitions → |
| improvised | 1. done or made using whatever is available More Definitions → |
| invalidate | 1. declare invalid 2. make invalid for use More Definitions → |
| impervious | 1. not admitting of passage or capable of being affected More Definitions → |
| incoherent | 1. unable to express yourself clearly or fluently 2. without logical or meaningful connection More Definitions → |
| intolerant | 1. unwilling to tolerate difference of opinion 2. narrow-minded about cherished opinions More Definitions → |
| infidelity | 1. the quality of being unfaithful More Definitions → |
| intimidate | 1. make timid or fearful 2. to compel or deter by or as if by threats More Definitions → |
| interwoven | 1. interlace by or as if by weaving 2. linked or locked closely together as by dovetailing More Definitions → |
| impediment | 1. something immaterial that interferes with or delays action or progress 2. any structure that makes progress difficult More Definitions → |
| 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 More Definitions → |
| illiteracy | 1. ignorance resulting from not reading 2. an inability to read More Definitions → |
| injectable | 1. (used of drugs) capable of being injected More Definitions → |
| invariance | 1. the quality of being resistant to variation 2. the nature of a quantity or property or function that remains unchanged when a given transformation is applied to it More Definitions → |
| instalment | 1. a part of a broadcast serial 2. a part of a published serial More Definitions → |
| intrastate | 1. relating to or existing within the boundaries of a state More Definitions → |
| idiopathic | 1. (of diseases) arising from an unknown cause More Definitions → |
| infraction | 1. a crime less serious than a felony More Definitions → |
| insatiable | 1. impossible to satisfy More Definitions → |
| isomorphic | 1. having similar appearance but genetically different More Definitions → |
| immaterial | 1. not pertinent to the matter under consideration 2. (often followed by `to') lacking importance; not mattering one way or the other More Definitions → |
| impersonal | 1. not relating to or responsive to individual persons 2. having no personal preference More Definitions → |
| inflexible | 1. incapable of adapting or changing to meet circumstances 2. incapable of change More Definitions → |
| irreverent | 1. showing lack of due respect or veneration 2. characterized by a lightly pert and exuberant quality More Definitions → |
| infiltrate | 1. cause (a liquid) to enter by penetrating the interstices 2. enter a group or organization in order to spy on the members More Definitions → |
| inaccuracy | 1. the quality of being inaccurate and having errors More Definitions → |
| intonation | 1. rise and fall of the voice pitch 2. singing by a soloist of the opening piece of plainsong More Definitions → |
| inductance | 1. an electrical phenomenon whereby an electromotive force (EMF) is generated in a closed circuit by a change in the flow of current 2. an electrical device (typically a conducting coil) that introduces inductance into a circuit More Definitions → |
| inadequacy | 1. lack of an adequate quantity or number 2. a lack of competence More Definitions → |
| iridescent | 1. varying in color when seen in different lights or from different angles 2. having a play of lustrous rainbow colors More Definitions → |
| impatience | 1. a lack of patience; irritation with anything that causes delay 2. a restless desire for change and excitement More Definitions → |
| internment | 1. confinement during wartime 2. the act of confining someone in a prison (or as if in a prison) More Definitions → |
| infallible | 1. incapable of failure or error More Definitions → |
| interlaced | 1. having a pattern of fretwork or latticework More Definitions → |
| imprinting | 1. a learning process in early life whereby species specific patterns of behavior are established More Definitions → |
| innocently | 1. in a not unlawful manner 2. in a naively innocent manner More Definitions → |
| invalidity | 1. illogicality as a consequence of having a conclusion that does not follow from the premisses More Definitions → |
| ionosphere | 1. the outer region of the Earth's atmosphere; contains a high concentration of free electrons More Definitions → |
| inoperable | 1. not able to perform its normal function 2. not suitable for surgery More Definitions → |
| immorality | 1. the quality of not being in accord with standards of right or good conduct 2. morally objectionable behavior More Definitions → |
| intertidal | 1. of or relating to the littoral area above the low-tide mark More Definitions → |
| inhabitant | 1. a person who inhabits a particular place More Definitions → |
| intubation | 1. the insertion of a cannula or tube into a hollow body organ More Definitions → |
| inducement | 1. a positive motivational influence 2. act of bringing about a desired result More Definitions → |
| icebreaker | 1. a ship with a reinforced bow to break up ice and keep channels open for navigation 2. a beginning that relaxes a tense or formal atmosphere More Definitions → |
| inflection | 1. a change in the form of a word (usually by adding a suffix) to indicate a change in its grammatical function 2. the patterns of stress and intonation in a language More Definitions → |
| impossibly | 1. to a degree impossible of achievement More Definitions → |
| incendiary | 1. involving deliberate burning of property 2. a criminal who illegally sets fire to property More Definitions → |
| incitement | 1. an act of urging on or spurring on or rousing to action or instigating 2. needed encouragement More Definitions → |
| inordinate | 1. beyond normal limits More Definitions → |
| indecision | 1. doubt concerning two or more possible alternatives or courses of action 2. the trait of irresolution; a lack of firmness of character or purpose More Definitions → |
| infeasible | 1. not capable of being carried out or put into practice More Definitions → |
| inquisitor | 1. a questioner who is excessively harsh More Definitions → |
| inheriting | 1. having the legal right to inherit More Definitions → |
| indexation | 1. a system of economic regulation: wages and interest are tied to the cost-of-living index in order to reduce the effects of inflation More Definitions → |
| invertible | 1. having an additive or multiplicative inverse More Definitions → |
| inimitable | 1. defying imitation; matchless More Definitions → |
| inbreeding | 1. the act of mating closely related individuals More Definitions → |
| isothermal | 1. of a process or change taking place at constant temperature More Definitions → |
| inundation | 1. the rising of a body of water and its overflowing onto normally dry land 2. an overwhelming number or amount More Definitions → |
| illegality | 1. unlawfulness by virtue of violating some legal statute More Definitions → |
| indistinct | 1. not clearly defined or easy to perceive or understand More Definitions → |
| initialise | 1. assign an initial value to a computer program 2. divide (a disk) into marked sectors so that it may store data More Definitions → |
| inexorably | 1. in an inexorable manner More Definitions → |
| infinitive | 1. the uninflected form of the verb More Definitions → |
| infuriated | 1. marked by extreme anger More Definitions → |
| immemorial | 1. long past; beyond the limits of memory or tradition or recorded history More Definitions → |
| instilling | 1. teaching or impressing upon the mind by frequent instruction or repetition More Definitions → |
| indwelling | 1. existing or residing as an inner activating spirit or force or principle More Definitions → |
| imipramine | 1. a tricyclic antidepressant (trade names Imavate and Tofranil) used to treat clinical depression More Definitions → |
| infliction | 1. the act of imposing something (as a tax or an embargo) 2. an act causing pain or damage More Definitions → |
| intervenor | 1. (law) a party who interposes in a pending proceeding More Definitions → |
| immaturity | 1. not having reached maturity More Definitions → |
| isoleucine | 1. an essential amino acid found in proteins; isomeric with leucine More Definitions → |
| inexorable | 1. not to be placated or appeased or moved by entreaty 2. impervious to pleas, persuasion, requests, reason More Definitions → |
| infighting | 1. conflict between members of the same organization (usually concealed from outsiders) 2. boxing at close quarters More Definitions → |
| intermezzo | 1. a short movement coming between the major sections of a symphony 2. a short piece of instrumental music composed for performance between acts of a drama or opera More Definitions → |
| inhumanity | 1. the quality of lacking compassion or consideration for others 2. an act of atrocious cruelty More Definitions → |
| impeccably | 1. flawlessly More Definitions → |
| integrally | 1. in an integral manner More Definitions → |
| indentured | 1. bound by contract More Definitions → |
| involution | 1. reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth) 2. a long and intricate and complicated grammatical construction More Definitions → |
| indecisive | 1. characterized by lack of decision and firmness 2. not definitely settling something More Definitions → |
| impassable | 1. incapable of being passed More Definitions → |
| ineptitude | 1. unskillfulness resulting from a lack of training 2. having no qualities that would render it valuable or useful More Definitions → |
| incestuous | 1. resembling incest as by excessive intimacy 2. relating to or involving incest More Definitions → |
| invigorate | 1. heighten or intensify 2. give life or energy to More Definitions → |
| instigator | 1. someone who deliberately foments trouble 2. a person who initiates a course of action More Definitions → |
| inaugurate | 1. commence officially 2. open ceremoniously or dedicate formally More Definitions → |
| intimation | 1. an indirect suggestion 2. a slight suggestion or vague understanding More Definitions → |
| interleave | 1. provide (books) with blank leaves 2. intersperse the sectors on the concentric magnetic circular patterns written on a computer disk surface to guide the storing and recording of data More Definitions → |
| infatuated | 1. marked by foolish or unreasoning fondness More Definitions → |
| immolation | 1. killing or offering as a sacrifice More Definitions → |
| iconoclast | 1. a destroyer of images used in religious worship 2. someone who attacks cherished ideas or traditional institutions More Definitions → |
| inactivate | 1. release from military service or remove from the active list of military service 2. make inactive More Definitions → |
| indictable | 1. liable to be accused, or cause for such liability More Definitions → |
| ionisation | 1. the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge) 2. the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas More Definitions → |
| immobility | 1. remaining in place 2. the quality of not moving More Definitions → |
| implacable | 1. incapable of being placated More Definitions → |
| iatrogenic | 1. induced by a physician's words or therapy (used especially of a complication resulting from treatment) More Definitions → |
| inebriated | 1. stupefied or excited by a chemical substance (especially alcohol) More Definitions → |
| imprimatur | 1. formal and explicit approval More Definitions → |
| inviolable | 1. immune to attack; incapable of being tampered with 2. must be kept sacred More Definitions → |
| idempotent | 1. unchanged in value following multiplication by itself More Definitions → |
| influencer | 1. a person who has a large following on one or more social media platform that works to generate interest in contemporary social issues and/or advertise consumer products More Definitions → |
| interweave | 1. interlace by or as if by weaving More Definitions → |
| invariable | 1. a quantity that does not vary 2. not liable to or capable of change More Definitions → |
| incumbency | 1. the term during which some position is held 2. a duty that is incumbent upon you More Definitions → |