166 entries under noun topic. ×

4
unfriendly
3
nemesis(opponent, bane, competitor, adversary)
3
attacker(opposition, agent, rebel, criminal)
3
bandit(person, opposition, agent, rebel)
3
combat
3
devil(trouble, curse, enemy)
3
jouster
3
opposer(match, opposition, opponent, enemy)
3
opposite number(expression, person, opponent, enemy)
3
other side(expression, idiom, opposition, agent)
3
participant(entry, competitor, contestant, candidate)
3
pretender
3
soldier(bully, combatant)
3
tough
3
warrior(tough, bully, combatant, competitor)
2
anti(adjective, opposition, hostile, counter)
2
buddy(person, opponent, competitor)
2
candidate(match, opposition, enemy, entry)
2
coequal(match, equal, contemporary, equivalent)
2
compeer(match, equal, contemporary, equivalent)
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APASmart Define. (2016). rival thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/rival/thesaurus/synonyms
ChicagoSmart Define. 2016. "rival thesaurus" https://smartdefine.org/rival/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, rival thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/rival/thesaurus/synonyms>.
MLASmart Define. "rival thesaurus" 30 March 2016. Web. 27 September 2026. <https://smartdefine.org/rival/thesaurus/synonyms>