/ Dictionary / Index H hedonism: Meaning and Definition of Find definitions for: he•don•ism Pronunciation: (hēd'n-iz"um), [key] — n. the doctrine that pleasure or happiness is the highest good. devotion to pleasure as a way of life: The later Roman emperors were notorious for their hedonism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hedonism (Thesaurus) hedonics hedonist Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language