/ Dictionary / Index I inexpiable: Meaning and Definition of Find definitions for: in•ex•pi•a•ble Pronunciation: (in-eks'pē-u-bul), [key] — adj. not to be expiated; not allowing for expiation or atonement: an inexpiable crime. implacable: inexpiable hate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inexpiable (Thesaurus) inexpert inexplainable Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language