/ Dictionary / Index I irrevocable: Meaning and Definition of Find definitions for: ir•rev•o•ca•ble Pronunciation: (i-rev'u-ku-bul), [key] — adj. not to be revoked or recalled; unable to be repealed or annulled; unalterable: an irrevocable decree. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: irrevocable (Thesaurus) irreversible irrigable 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