Dumb Definition

permitting little if any light to pass through because of denseness of matter; "dense smoke"; "heavy fog

lacking in light; not bright or harsh; "a dim light beside the bed

lacking in liveliness or animation; "he was so dull at parties"; "a dull political campaign

without or deprived of the use of speech or words; "inarticulate beasts

expressed without speech; "a mute appeal"; "a silent curse"; "best grief is tongueless"- Emily Dickinson

of an angle; between 90 and 180 degrees (of a leaf shape) rounded at the apex lacking in insight or discernment

marked by absence of sound; "a silent house"; "soundless footsteps on the grass

without speed (`slow' is sometimes used informally for `slowly'); "he spoke slowly

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

lacking or marked by lack of intellectual acuity in a state of mental numbness especially as resulting from shock