5
opposition(noun, opponent, person, rival, competitor)
5
other side(noun, expression, rival, opponent, competitor)
4
crip(noun, hostile, opponent, adversary, foe)
4
oppugnant(noun, rival, opponent, competitor, adversary)
4
rebel(noun, rival, opponent, competitor, adversary)
4
revolutionary(noun, rival, opponent, competitor, adversary)
4
stranger(noun, person, opponent)
4
villain(noun, rival, opponent, competitor, adversary)
3
abuser(noun, person, opponent)
3
accuser(noun, person, opponent)
3
aggressor(noun, person, opponent)
3
arch-foe(noun, person, opponent)
3
attacker(noun, person, opponent)
3
contestant(noun, person, opponent)
3
devil(noun, person, opponent)
3
dissenter(noun, person, opponent)
3
evil(noun, person, opponent)
3
warmonger(noun, person, opponent)
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APASmart Define. (2016). sidekick thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sidekick/thesaurus/antonyms
ChicagoSmart Define. 2016. "sidekick thesaurus" https://smartdefine.org/sidekick/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, sidekick thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sidekick/thesaurus/antonyms>.
MLASmart Define. "sidekick thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/sidekick/thesaurus/antonyms>