adversary

/ˈædvəsəri/ · AD-vur-sair-eenoun

An opponent, rival, or enemy in a conflict, contest, debate, or struggle.

Use adversary to express this relationship precisely: an opponent, rival, or enemy in a conflict, contest, debate, or struggle.

What adversary Really Means

The word becomes easier to use when its closely related senses are separated and compared.

1

Core meaning

An opponent, rival, or enemy in a conflict, contest, debate, or struggle.

Example

The champion treated every adversary with respect.

2

Common noun frame

Use this noun in a complete noun phrase, adding the complement that identifies what it refers to when needed.

Example

Former political adversaries cooperated during the crisis.

3

Analytical distinction

Choose it when this exact concept matters; a related term may describe its cause, evidence, or opposite instead.

Example

The pathogen proved a more adaptable adversary than expected.

Use adversary Naturally

Notice how the surrounding noun or clause reveals the exact shade of meaning.

The champion treated every adversary with respect.

Former political adversaries cooperated during the crisis.

The pathogen proved a more adaptable adversary than expected.

Precision Matters

Adversary overlaps with several common words, but each carries a different emphasis.

adversary

Means an opponent, rival, or enemy in a conflict, contest, debate, or struggle.

vs.
advocate

Means publicly support, recommend, or argue in favour of a cause, policy, or course of action.

adversary

Means an opponent, rival, or enemy in a conflict, contest, debate, or struggle.

vs.
interlocutor

Means a person who takes part in a conversation, dialogue, interview, or formal discussion.

adversary

Means an opponent, rival, or enemy in a conflict, contest, debate, or struggle.

vs.
potentate

Means a monarch, ruler, or other person who holds great political power.

adversary

Means an opponent, rival, or enemy in a conflict, contest, debate, or struggle.

vs.
pugnacious

Means eager or quick to argue, quarrel, challenge, or fight.

Test adversary in Context

Each person is the other's opponent in the contest.

1

Although the two debaters were friends, each regarded the other as a formidable ___ during the competition.

Prepared byFirst Academy
Editorial responsibilityFirst Academy Academic Team
Updated3 August 2026
Selection and reviewRead our methodology