/ Dictionary / Index O out-of-date: Meaning and Definition of Find definitions for: out-of-date Pronunciation: (out'uv-dāt'), [key] — adj. gone out of style or fashion; outmoded; obsolete: out-of-date fashions; out-of-date ideas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: out-of-date (Thesaurus) out-of-court out-of-doors Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language