4
candidate(noun, person, match, opposition, rival)
4
con(noun, person, match, opposition, rival)
4
detractor(noun, opposition, agent, rebel, criminal)
4
devil(noun, evil, awful, enemy, foe)
4
dissentient(noun, adjective, person, match, opposition)
4
fighter(noun, person, combatant)
4
inimical
4
other side(noun, expression, idiom, opposition, agent)
4
rebel(noun, person, opposition, agent, criminal)
4
warrior(noun, combatant, fighter)
3
adversative
3
antithetic
3
antonyms
3
attacker(noun, opposition, agent, rebel, criminal)
3
challenger(noun, person, match, opposition, rival)
3
conflicting
3
contradictory
3
contrarian(noun, person, opposition, competitor)
3
counteragent(noun, person, match, opposition, rival)
3
entry
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APASmart Define. (2016). opponent thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/opponent/thesaurus/synonyms
ChicagoSmart Define. 2016. "opponent thesaurus" https://smartdefine.org/opponent/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, opponent thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/opponent/thesaurus/synonyms>.
MLASmart Define. "opponent thesaurus" 30 March 2016. Web. 21 September 2026. <https://smartdefine.org/opponent/thesaurus/synonyms>