Synonyms: unmatchable, unmatched, matchless, unrivaled, unrivalled, one, one and only, nonpareil, peerless
Definition: eminent beyond or above comparison
Usage: 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
Similar words: uncomparable, incomparable
Definition: such that comparison is impossible; unsuitable for comparison or lacking features that can be compared
Usage: an incomparable week of rest and pleasure; the computer proceeds with its incomparable logic and efficiency; this report is incomparable with the earlier ones because of different breakdowns of the data