/ Dictionary / Index A amnesiac: Meaning and Definition of Find definitions for: am•ne•si•ac Pronunciation: (am-nē'zhē-ak", -zē-), [key] — n. a person affected by amnesia. —adj. displaying the symptoms of amnesia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: amnesiac (Thesaurus) amnesia amnesty Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language