逆は英語で
anti-

英語の定義

逆
1. adj. reverse; contrary; opposite
位置が逆なことに気づく - to notice that the positions are switched
すごすぎて逆に普通 - so extraordinary that it's actually not that interesting
クソすぎて逆に見たい - so shitty that on the contrary, I do want to see
逆に知りたい - honestly, I want to know too
2. adj. (logic) converse
3. n. reverse; contrary; opposite
逆のアプローチ - an opposite approach
4. n. (logic) converse
5. affix. reverse; contrary; opposite
逆方向 - opposite direction