na-adjective, noun which may take the genitive case particle 'no', noun
Describes ideas, movements, or people that are cutting-edge, extreme, or sharply critical. Often used in political or intellectual contexts.
彼は先鋭的な意見を述べた。
He expressed a radical opinion.
先鋭化する社会問題に対処する。
Deal with increasingly acute social problems.
Compound of 先 (sen, 'tip, ahead') and 鋭 (ei, 'sharp, pointed'). The combination conveys the idea of being at the cutting edge or sharply advanced.