/ Dictionary / Index O orgiastic: Meaning and Definition of Find definitions for: or•gi•as•tic Pronunciation: (ôr"jē-as'tik), [key] — adj. of, pertaining to, or having the nature of an orgy. tending to arouse or excite unrestrained emotion: orgiastic rhythms. (of an expressive crowd) reaching a peak of emotional intensity, often of an ecstatic nature and frequently expressed by uninhibited behavior. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: orgiastic (Thesaurus) Orgetorix orgone box Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language