1. Radically distinctive and without equal
   "unparalleled athletic ability"; "a breakdown of law unparalleled in our history"
   - alone, unique, unequaled [US], unequalled [Brit, Cdn]

See also: incomparable, uncomparable

• Klinefelter
• Klinefelter syndrome
• Klinefelter's syndrome
• klipspringer
• klondike
• kloof
• Klopstock
• Klorvess
• Klotho
• kludge
• klutz
• klutzy
• Kluxer
• klystron
• Klyuchevskaya
• km
• km/h
• knack
• knacker
• knackered
• knackers
• knackwurst
• knag
• knap
• knapsack