悪あく辣らつ

na-adjective

crafty; unscrupulous; vicious

Describes a person or action that is cunning and morally bad, often with a sense of sharpness or cleverness used for evil purposes.

• 彼かれは悪あく辣らつな手て口ぐちでライバル会社がいしゃを追おい込こんだ。

  He cornered the rival company with crafty tactics.

• あの政せい治じ家かの悪あく辣らつなやり方かたには呆あきれる。

  I am disgusted by that politician's unscrupulous methods.