/ Dictionary / Index M misdate: Meaning and Definition of Find definitions for: mis•date Pronunciation: (mis-dāt'), [key] — v., n. -dat•ed, -dat•ing, —v.t. to assign or affix a wrong date to. —n. a wrong date. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: misdate (Thesaurus) miscue misdeal Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language