/ Dictionary / Index O outdate: Meaning and Definition of Find definitions for: out•date Pronunciation: (out"dāt'), [key] — -dat•ed, -dat•ing. to put out of date; make antiquated or obsolete: The advent of the steamship outdated sailing ships as commercial carriers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. outdare outdated Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language