/ Dictionary / Index P prepotent: Meaning and Definition of Find definitions for: pre•po•tent Pronunciation: (prē-pōt'nt), [key] — adj. preeminent in power, authority, or influence; predominant: a prepotent name in the oil business. noting, pertaining to, or having prepotency. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prepotency preppy 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