ざとい
mezatoi

i-Adjective

1. sharp-eyed; keen-eyed

かれ かねもうけのあらゆる機会 きかい ざとい。
karewa kanemōkeno arayuru kikaini mezatoi.
He is alert to every chance of making money.
i-Adjective

2. easily awakened

ねん ると ざとくなる。
toshio toruto mezatokunaru.
As one grows old, one becomes a light sleeper.
Other forms: