adversary.
A person, group, or thing that opposes or attacks another person or group; an opponent or rival.
Meaning & usage
A person, group, or thing that opposes or attacks another person or group; an opponent or rival.
He prepared to fight his adversary.
Where this word comes from
From Middle English adversarie, from Anglo-Norman aversaire (in Wace's Life of Saint Margaret) and Old French aversier, aversaire (French adversaire), from Latin adversārius, from adversus (“turned toward”). By surface analysis, adverse + -ary.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.