70 entries under competitor topic. ×

1
candidate(noun, match, opposition, rival, enemy)
1
dark horse(noun, expression, opposition, rival, favorite)
1
defamer(noun, opposition, agent, rebel, criminal)
1
defiler(noun, opposition, agent, rebel, criminal)
1
detractor(noun, opposition, agent, rebel, criminal)
1
emulator(noun, opposition, agent, rebel, criminal)
1
falsifier(noun, opposition, agent, rebel, criminal)
1
favorite(rival, participant, contestant, candidate)
1
fifth column(expression, opposition, agent, rebel, criminal)
1
informer(noun, opposition, agent, rebel, criminal)
1
inquisitor(noun, opposition, agent, rebel, criminal)
1
murderer(noun, opposition, agent, rebel, criminal)
1
opposite number(noun, expression, person, rival, opponent)
1
peer(noun, like, balance, equal, double)
1
prosecutor(noun, opposition, agent, rebel, criminal)
1
saboteur(noun, opposition, agent, rebel, criminal)
1
scrapper(tough, participant, bodyguard, candidate)
1
slanderer(noun, opposition, agent, rebel, criminal)
1
spy(noun, opposition, agent, rebel, criminal)
1
terrorist(noun, opposition, agent, rebel, criminal)
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APASmart Define. (2016). antagonist thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/antagonist/thesaurus/synonyms
ChicagoSmart Define. 2016. "antagonist thesaurus" https://smartdefine.org/antagonist/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, antagonist thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/antagonist/thesaurus/synonyms>.
MLASmart Define. "antagonist thesaurus" 30 March 2016. Web. 27 September 2026. <https://smartdefine.org/antagonist/thesaurus/synonyms>