DULL

Definition of DULL

(verb)make dull in appearance
(verb)become dull or lusterless in appearance; lose shine or brightness
(verb)deaden (a sound or noise), especially by wrapping
(verb)make numb or insensitive
(verb)make dull or blunt
(verb)become less interesting or attractive
(verb)make less lively or vigorous
(adj)lacking in liveliness or animation
(adj)emitting or reflecting very little light
(adj)not keenly felt
(adj)not having a sharp edge or point
(adj)being or made softer or less loud or clear
(adj)so lacking in interest as to cause mental weariness
(adj)(of color) very low in saturation; highly diluted
(adj)slow to learn or understand; lacking intellectual acuity
(adj)(of business) not active or brisk
(adj)blunted in responsiveness or sensibility
(adj)not clear and resonant; sounding as if striking with or against something relatively soft
(adj)darkened with overcast