/ Dictionary / Index U unfact: Meaning and Definition of Find definitions for: un•fact Pronunciation: (un-fakt'), [key] — n. Informal. a fabrication that is disseminated as fact. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unfaced unfailing Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language