- opposed to; against反对; 对立：
I'm anti the abuse of drink and the hassle that it causes.
我反对饮酒无度和酗酒滋事。
(pl. antis)
- informal a person opposed to a particular policy, activity, or idea〈非正式〉（政策、活动或主意的）反对者：
the threat to field sports from the antis is a serious one.
反对者对户外运动的威胁是须认真对待的一个问题。
词源
late 18th cent. (as a noun)： independent usage of ANTI-.