n.敌手;对手
You may have a hidden adversary who would love to prove you wrong. 你可能有一个潜在的敌手,他时刻准备着与你作对。
He was dismayed at the size of his adversary. 对手的魁伟身材使他丧失了勇气。
They continued to view it as their major adversary. 他们继续把它看作主要的对手。
adversary的基本意思是辩论或者战斗中的“敌手; 对手”,可指怀有敌对思想,也可指采取敌对行动,一般较难对付。