Having no equal; peerless: the Yankees' nonpareil center fielder.
NOUN:
1. A person or thing that has no equal; a paragon. 2. See painted bunting. 3. A small, flat chocolate drop covered with white pellets of sugar.
ETYMOLOGY:
Middle English nounparalle, from Old French nonpareil : non-, non- + pareil, equal (from Vulgar Latin *pariculus, diminutive of Latin pr, equal; see per-2 in Appendix I).