ずる賢い
1
adjective (keiyoushi)
astuto;listo
1
adjective (keiyoushi)
devious;cunning;sly;crafty
彼はとてもずる賢いので私は嫌いだ。
I don't like him because he is sly as a fox.
Other forms
狡賢い 【ずるがしこい】