/ Dictionary / Index I imperception: Meaning and Definition of Find definitions for: im•per•cep•tion Pronunciation: (im"pur-sep'shun), [key] — n. lack of perception. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. imperceptible imperceptive 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