Often used attributively to describe a person or group full of drive and sharpness, especially in phrases like 気鋭の作家 (up-and-coming writer) or 気鋭の研究者 (dynamic researcher).
気鋭 describes vigorous, ambitious talent and is most often paired as 新進気鋭, whereas 新鋭 can stand alone and modify things like aircraft or companies as well as people.
Compound of 気 (spirit, energy) and 鋭 (sharp, keen). The exact historical derivation is uncertain, but the combination conveys a sense of sharp, spirited vigor.
