1
whistle-stopper
1
write-in
0
dud
0
activist
0
animal
0
backer
0
bangtail
0
bottom dog(noun, expression, longshot, out-of-towner)
0
campaign
0
competition(rival, favorite, participant, contestant)
0
contributor
0
corival(rival, favorite, participant, contestant)
0
dark nebula
0
defeatist
0
hack
0
heeler
0
lobbyist
0
longshot(noun, out-of-towner)
0
mate
0
oppositionist(noun, opponent)
10 years ago|5.7k views|share |citing 
APASmart Define. (2016). dark horse thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/dark_horse/thesaurus/synonyms
ChicagoSmart Define. 2016. "dark horse thesaurus" https://smartdefine.org/dark_horse/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, dark horse thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/dark_horse/thesaurus/synonyms>.
MLASmart Define. "dark horse thesaurus" 1 April 2016. Web. 27 September 2026. <https://smartdefine.org/dark_horse/thesaurus/synonyms>