/ Dictionary / Index R rebuttal: Meaning and Definition of Find definitions for: re•but•tal Pronunciation: (ri-but'l), [key] — n. an act of rebutting, as in a debate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rebuttal (Thesaurus) rebut rebutter Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language