Peerless
WordNet
adjective
(1) 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"