/ Dictionary / Index I impassible: Meaning and Definition of Find definitions for: im•pas•si•ble Pronunciation: (im-pas'u-bul), [key] — adj. incapable of suffering pain. incapable of suffering harm. incapable of emotion; impassive. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. impasse impassion Related Content Daily Word Quiz: longevity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language