/ Dictionary / Index P pervicacious: Meaning and Definition of Find definitions for: per•vi•ca•cious Pronunciation: (pûr"vi-kā'shus), [key] — adj. extremely willful; obstinate; stubborn. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. perverted pervious 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