/ Dictionary / Index P protean: Meaning and Definition of Find definitions for: pro•te•an Pronunciation: (prō'tē-un, prō-tē'-), [key] — adj. readily assuming different forms or characters; extremely variable. changeable in shape or form, as an amoeba. (of an actor or actress) versatile; able to play many kinds of roles. (cap.) of, pertaining to, or suggestive of Proteus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: protean (Thesaurus) protasis protease 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