Source : Webster's Revised Unabridged Dictionary (1913)

Matchless \Match"less\, a. [Cf. {Mateless}.]
   1. Having no equal; unequaled. ``A matchless queen.''
      --Waller.

   2. Unlike each other; unequal; unsuited. [Obs.] ``Matchless
      ears.'' --Spenser. -- {Match"less*ly}, adv. --
      {Match"less*ness}, n.

Source : WordNet®

matchless
     adj : eminent beyond or above comparison; "matchless beauty"; "the
           team's nonpareil center fielder"; "she's one girl in a
           million"; "the one and only Muhammad Ali"; "a peerless
           scholar"; "infamy unmatched in the Western world";
           "wrote with unmatchable clarity"; "unrivaled mastery of
           her art" [syn: {nonpareil}, {one(a)}, {one and only(a)},
            {peerless}, {unmatched}, {unmatchable}, {unrivaled}, {unrivalled}]