/ Dictionary / Index S stupid: Meaning and Definition of Find definitions for: stu•pid Pronunciation: (st'pid, sty'-), [key] — adj., n. -er, -est, —adj. lacking ordinary quickness and keenness of mind; dull. characterized by or proceeding from mental dullness; foolish; senseless: a stupid question. tediously dull, esp. due to lack of meaning or sense; inane; pointless: a stupid party. annoying or irritating; troublesome: Turn off that stupid radio. in a state of stupor; stupefied: stupid from fatigue. excellent; terrific. —n. a stupid person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stupid (Thesaurus) stupendous stupidity Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language