/ Dictionary / Index R rebarbative: Meaning and Definition of Find definitions for: re•bar•ba•tive Pronunciation: (rē-bär'bu-tiv), [key] — adj. causing annoyance, irritation, or aversion; repellent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rebarbative (Thesaurus) rebar rebate Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language