194 entries under noun topic. ×

2
guerrilla(opposition, agent, rebel, criminal)
2
invader(opposition, agent, rebel, criminal)
2
obstructionist
2
participant(competitor, contestant, contender)
2
revolutionary(opposition, agent, rebel, criminal)
2
rioter(resistance, rebel, combatant, recreant)
2
seditionist(opposition, agent, rebel, criminal)
2
traitor(opposition, agent, rebel, criminal)
2
villain(opposition, agent, rebel, criminal)
1
abolitionist
1
agent(opposition, rebel, criminal, rival)
1
antithesis
1
asperser(opposition, agent, rebel, criminal)
1
assassin(opposition, agent, rebel, criminal)
1
assaulter
1
backbiter(opposition, agent, rebel, criminal)
1
basher(evil, awful, enemy, foe)
1
besieger
1
betrayer(opposition, agent, rebel, criminal)
1
bidder(person, match, opposition, rival)
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APASmart Define. (2016). opponent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/opponent/thesaurus/synonyms
ChicagoSmart Define. 2016. "opponent thesaurus" https://smartdefine.org/opponent/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, opponent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/opponent/thesaurus/synonyms>.
MLASmart Define. "opponent thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/opponent/thesaurus/synonyms>