anti sb/sth (informal)
If sb is anti sb/sth, they do not like or agree with that person or thing 反对
I'm anti useless yet luxury stuff.
我反对没用又昂贵的东西。

anti-单词前缀（构成名词和形容词）
antisocial 反社会的
antisocial behaviour 反社会行为

kick against sth 反对，反抗，抵抗（某事）
I'm not kicking against the rules, I'm kicking against their attitude.
我不是反对这些规定，我是反对他们这种态度。

be up in arms about/over sth 极力反对；强烈抗议
We're up in arms about 996.
我们强烈反对996.

put your foot down 坚决制止；执意反对
Are you gonna have to put your foot down?
你执意要反对吗？
You've got to learn to put your foot down when it's necessary, otherwise people will take advantage of you.
你得学会在必要的时候强硬拒绝，不然别人会利用你。