na-adjective, noun
intelligence; cleverness; innate aptitude
Refers to natural intellectual sharpness or quick-wittedness. Often used in contrast with 鈍根 (どんこん, 'dullness').
Antonyms: 鈍根
彼は利根だから、難しい問題もすぐに解ける。
He is so clever that he can solve difficult problems right away.
利根な人は、新
People with innate aptitude learn new things quickly.