/ Dictionary / Index I impalpable: Meaning and Definition of Find definitions for: im•pal•pa•ble Pronunciation: (im-pal'pu-bul), [key] — adj. not palpable; incapable of being perceived by the sense of touch; intangible. difficult for the mind to grasp readily or easily: impalpable distinctions. (of powder) so fine that when rubbed between the fingers no grit is felt. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: impalpable (Thesaurus) impale impanation 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