38 entries under rival topic. ×

11
competitor(noun, animal, person, sport, opposition)
4
competition(noun, opponent, favorite, peer)
3
opponent(noun, person, match, opposition)
2
antagonist(noun, opposition, opponent, favorite)
2
contestant(noun, animal, sport, opposition)
1
adversary(noun, opposition, opponent, favorite)
1
enemy(noun, match, opposition, opponent)
1
anti(noun, match, opposition, opponent)
1
aspirant(noun, opposition, enemy, competitor)
1
assailant(noun, match, opposition, opponent)
1
bandit(noun, match, opposition, opponent)
1
bidder(noun, match, opposition, opponent)
1
candidate(noun, match, opposition, enemy)
1
con(noun, match, opposition, opponent)
1
counteragent(noun, match, opposition, opponent)
1
dark horse(noun, expression, opposition, favorite)
1
disputant(noun, opposition, opponent, enemy)
1
dissentient(noun, match, opposition, opponent)
1
entrant(noun, opposition, opponent, peer)
1
favorite(competitor, participant, contestant, candidate)
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APASmart Define. (2015). challenger thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/challenger/thesaurus/synonyms
ChicagoSmart Define. 2015. "challenger thesaurus" https://smartdefine.org/challenger/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, challenger thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/challenger/thesaurus/synonyms>.
MLASmart Define. "challenger thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/challenger/thesaurus/synonyms>