/ Dictionary / Index P pertinent: Meaning and Definition of Find definitions for: per•ti•nent Pronunciation: (pûr'tn-unt), [key] — adj. pertaining or relating directly and significantly to the matter at hand; relevant: pertinent details. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pertinent (Thesaurus) pertinacity perturb Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language