The meaning of ADVERSARY is one that contends with, opposes, or resists : an enemy or opponent. How to use adversary in a sentence. Did you know?

ADVERSARY definition: a person, group, or force that opposes or attacks; opponent; enemy; foe. See examples of adversary used in a sentence.

Definition of adversary noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

An adversary is an enemy or someone who opposes someone else. In tennis, you stand across the net from your adversary. Adversary is related to the word adverse, meaning "against or contrary" — …

(Definition of adversary from the Cambridge Academic Content Dictionary © Cambridge University Press)

Your adversary is someone you are competing with or fighting against.

Adversary definition: An opponent; an enemy.

Factsheet What does the word adversary mean? There are five meanings listed in OED's entry for the word adversary. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Adversary, antagonist mean a person or a group contending against another. Adversary suggests an enemy who fights determinedly, continuously, and relentlessly: a formidable adversary.

Feb 12, 2026 · Noun adversary (plural adversaries) An opponent or rival. He prepared to fight his adversary.