/ Dictionary / Index D dullard: Meaning and Definition of Find definitions for: dull•ard Pronunciation: (dul'urd), [key] — n. a stupid, insensitive person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dullard (Thesaurus) dull Dulles Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language