anti-
/ˈæntɪ/(亦作ant-)
prefix
1
- opposed to; against表示“反”, “抗”：
anti-aircraft.
1.1
- preventing表示“防止”：
antibacterial.
1.2
- relieving表示“解除”, “减轻”：
antipruritic*
1.3
- the opposite of表示“反”, “与…相对立”：
anticlimax.
1.4
- acting as a rival表示“竞争”, “对抗”：
antipope.
1.5
- unlike the conventional form表示“非正统的”：
anti-hero.
2
- Physics the antiparticle of a specified particle【物理】表示“（某种粒子的）反粒子”：
antiproton.
词源
from Greek anti 'against'.