sneakiness

His sneakiness eventually caught up with him when his lies were exposed.

嘘が暴かれたとき、彼の卑劣さがついに彼に報いとなった。

I don't appreciate the sneakiness in how this deal was handled.

この取引の扱い方における卑劣さは感心しない。

That was a sneaky trick to play on your friend.

友達にそんなずるいいたずらをするなんて。

The sneaky salesman tried to add hidden fees to the contract.

そのずるい販売員は契約に隠れた手数料を追加しようとした。