Breadcrumb Home > Dictionary > Index E evanescent: Meaning and Definition of Find definitions for: ev•a•nes•cent Pronunciation: (ev"u-nes'unt), [key] — adj. vanishing; fading away; fleeting. tending to become imperceptible; scarcely perceptible. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: evanescent (Thesaurus) evanesce Evang. ✖ Related Content Daily Word Quiz: ultimathule Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language