166 entries under noun topic. ×

2
con(match, opposition, opponent, enemy)
2
conflict(fight, defend, contend, compete)
2
contention
2
counterpart(match, balance, equal, double)
2
couple(balance, equal, equivalent, counterpart)
2
dissentient(adjective, opposition, hostile, counter)
2
fellow(equal, contemporary)
2
invader(opposition, agent, rebel, criminal)
2
like(match, balance, equal, double)
2
litigant(match, opposition, opponent, combatant)
2
oppugnant(match, opposition, opponent, enemy)
2
pair(balance, equal, equivalent, counterpart)
2
terrorist(opposition, agent, rebel, criminal)
2
tilter
2
villain(opposition, agent, rebel, criminal)
1
agent(opposition, rebel, criminal, opponent)
1
asperser(opposition, agent, rebel, criminal)
1
aspirant(match, opposition, enemy, competitor)
1
assassin(opposition, agent, rebel, criminal)
1
assaulter
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APASmart Define. (2016). rival thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rival/thesaurus/synonyms
ChicagoSmart Define. 2016. "rival thesaurus" https://smartdefine.org/rival/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, rival thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rival/thesaurus/synonyms>.
MLASmart Define. "rival thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/rival/thesaurus/synonyms>