/ Dictionary / Index P perfectly: Meaning and Definition of Find definitions for: per•fect•ly Pronunciation: (pûr'fikt-lē), [key] — adv. in a perfect manner or to a perfect degree: to sing an aria perfectly. completely; fully; adequately: This will suit my purpose perfectly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: perfectly (Thesaurus) perfectivize perfect number 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