na-adjective, noun which may take the genitive case particle 'no', noun
quick-witted; brilliant; flashes of genius
A yojijukugo describing someone whose intelligence and talent shine through in their words and actions. Often used to praise a person's sharp mind and creative brilliance.
彼の才気煥発な発言に、会場がどよめいた。
His brilliant remarks caused a stir in the hall.
Brilliant young researchers are emerging one after another.