/ Dictionary / Index D disbelieve: Meaning and Definition of Find definitions for: dis•be•lieve Pronunciation: (dis"bi-lēv'), [key] — v., -lieved, -liev•ing. —v.t. to have no belief in; refuse or reject belief in: to disbelieve reports of UFO sightings. —v.i. to refuse or reject belief; have no belief. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: disbelieve (Thesaurus) disbelief disbosom Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language