gratuitous

1. ADJ If you describe something as gratuitous, you mean that it is unnecessary, and often harmful or upsetting. 不必要的

There's too much crime and gratuitous violence on TV. 電視上充斥著過多的犯罪與無端的暴力。

2. gratuitouslyADV 不必要地

They wanted me to change the title to something less gratuitously offensive. 他們想讓我把標題改得不那么過于無禮。