/ Dictionary / Index R rancorous: Meaning and Definition of Find definitions for: ran•cor•ous Pronunciation: (rang'kur-us), [key] — adj. full of or showing rancor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rancorous (Thesaurus) rancor rand 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