/ Dictionary / Index P peerless: Meaning and Definition of Find definitions for: peer•less Pronunciation: (pēr'lis), [key] — adj. having no equal; matchless; unrivaled. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: peerless (Thesaurus) Peer Gynt* peer of the realm Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language