# adversary

/ˈædvɝˌsɛɹi/ (US) · /ˈædvəsəɹi/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/adversary
Updated: 2026-05-07

## Definition

an opponent or enemy in a fight, game, or argument. You use this word for someone you are actively competing against.

For teachers: an opponent in a contest, conflict, or dispute. Often implies a long-standing or formidable opposition rather than a temporary rival.

## Examples

- The boxer respected his adversary after the long match.
- In the final round of the debate, she faced her most difficult adversary yet.
- The two political leaders had been adversaries for decades, yet they maintained a level of mutual respect that allowed for occasional diplomatic breakthroughs.

## Usage notes

- Frequently paired with adjectives like 'formidable', 'worthy', or 'old'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.