/ Dictionary / Index I incredulity: Meaning and Definition of Find definitions for: in•cre•du•li•ty Pronunciation: (in"kri-d'li-tē, -dy'-), [key] — n. the quality or state of being incredulous; inability or unwillingness to believe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: incredulity (Thesaurus) incredible incredulous Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language