anti sb/sth (informal)
If sb is anti sb/sth, they do not like or agree with that person or thing 反對
I'm anti useless yet luxury stuff.
我反對沒用又昂貴的東西。

anti-單詞前綴（構成名詞和形容詞）
antisocial 反社會的
antisocial behaviour 反社會行為

kick against sth 反對，反抗，抵抗（某事）
I'm not kicking against the rules, I'm kicking against their attitude.
我不是反對這些規定，我是反對他們這種態度。

be up in arms about/over sth 極力反對；強烈抗議
We're up in arms about 996.
我們強烈反對996.

put your foot down 堅決制止；執意反對
Are you gonna have to put your foot down?
你執意要反對嗎？
You've got to learn to put your foot down when it's necessary, otherwise people will take advantage of you.
你得學會在必要的時候強硬拒絕，不然別人會利用你。