adj. lacking the power of human speech; "dumb animals"

adj. temporarily incapable of speaking; "struck dumb"; "speechless with shock"

adj. unable to speak because of hereditary deafness

adj. slow to learn or understand; lacking intellectual acuity; "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students"

adj. perplexed by many conflicting situations or statements; filled with bewilderment; "obviously bemused by his questions"; "bewildered and confused"; "a cloudy and confounded philosopher"; "just a mixed-up kid"; "she felt lost on the first day of school"

adj. having component parts closely crowded together; "a compact shopping center"; "a dense population"; "thick crowds"; "a thick forest"; "thick hair"

adj. hard to pass through because of dense growth; "dense vegetation"; "thick woods"

adj. lacking mental capacity and subtlety

adj. lacking brilliance or vitality; "a dull lackluster life"; "a lusterless performance"

adj. mentally deficient

adj. relatively slow in mental or emotional or physical development; "providing a secure and sometimes happy life for the retarded"

adj. mentally or physically infirm with age; "his mother was doddering and frail"

adj. (used of timepieces) indicating a time earlier than the correct time; "the clock is slow"

adj. not using intelligence

adj. so lacking in interest as to cause mental weariness; "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn't capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people's dreams are dreadfully wearisome"

adj. retarded in intellectual development

adj. showing or resulting from lack of judgment or wisdom; "an unwise investor is soon impoverished"

adj. unable to speak because of a brain lesion

adj. being without sound through injury or illness and thus incapable of all but whispered speech

adj. unable to speak because of hereditary deafness

adj. unable to express yourself clearly or fluently; "felt tongue-tied with embarrassment"; "incoherent with grief"

adj. expressed without speech; "a mute appeal"; "a silent curse"; "best grief is tongueless"- Emily Dickinson; "the words stopped at her lips unsounded"; "unspoken grief"; "choking exasperation and wordless shame"- Thomas Wolfe

adj. temporarily incapable of speaking; "struck dumb"; "speechless with shock"

adj. unable to speak freely and easily

adj. uttered without the use of normal words or syllables

adj. unable to speak because of a brain lesion

adj. being without sound through injury or illness and thus incapable of all but whispered speech

adj. unable to speak because of hereditary deafness

adj. lacking the power of human speech; "dumb animals"

adj. unable to express yourself clearly or fluently; "felt tongue-tied with embarrassment"; "incoherent with grief"

adj. expressed without speech; "a mute appeal"; "a silent curse"; "best grief is tongueless"- Emily Dickinson; "the words stopped at her lips unsounded"; "unspoken grief"; "choking exasperation and wordless shame"- Thomas Wolfe

adj. unable to speak freely and easily

adj. uttered without the use of normal words or syllables

adj. unable to speak because of a brain lesion

adj. being without sound through injury or illness and thus incapable of all but whispered speech

adj. lacking the power of human speech; "dumb animals"

adj. unable to express yourself clearly or fluently; "felt tongue-tied with embarrassment"; "incoherent with grief"

adj. expressed without speech; "a mute appeal"; "a silent curse"; "best grief is tongueless"- Emily Dickinson; "the words stopped at her lips unsounded"; "unspoken grief"; "choking exasperation and wordless shame"- Thomas Wolfe

adj. temporarily incapable of speaking; "struck dumb"; "speechless with shock"

adj. unable to speak freely and easily

adj. uttered without the use of normal words or syllables

adj. having or revealing stupidity; "ridiculous anserine behavior"; "a dopey answer"; "a dopey kid"; "some fool idea about rewriting authors' books"

adj. (used informally) stupid

adj. heavy and dull and stupid

adj. (British informal) lacking intelligence and vitality

adj. mentally sluggish

adj. (of especially persons) lacking sense or understanding or judgment

adj. showing mental alertness and calculation and resourcefulness

adj. having keenness and forcefulness and penetration in thought, expression, or intellect; "searching insights"; "trenchant criticism"