One who is hostile or opposed to another; an adversary.

A person or group that is actively opposed or hostile to someone or something.

विरोधी

English Usage: In the debate, she presented her arguments against her political enemies.

Hindi Usage: बहस में, उसने अपने राजनीतिक विरोधियों के खिलाफ अपने तर्क प्रस्तुत किए।