80 entries under doubtful topic. ×

1
hesitant(uncertain, unsure)
1
iffy(uncertain, shaky, unsure, implausible)
1
indecisive(uncertain, unsure)
1
mootable(uncertain, unsure)
1
not likely(expression, adjective, idiom, dubious)
1
open(adjective, obscure, uncertain, shaky)
1
outside chance(expression, adjective, dubious, implausible)
1
perplexed(uncertain, unsure)
1
problematic(adjective, open, obscure, uncertain)
1
queer(adjective, strange, crazy, fantastic, irregular)
1
reluctant(uncertain, unsure)
1
skeptical(uncertain, unsure)
1
thin(adjective, light, extraordinary, strange, exceptional)
1
touch and go(expression, idiom, uncertain, unsure)
1
trustless(uncertain, unsure)
1
unassured(uncertain, unsure)
1
uncertain(adjective, open, dubious, rare)
1
unconvinced(uncertain, unsure)
1
undecided(uncertain, unsure, debatable)
1
undependable(uncertain, unsure)
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APASmart Define. (2015). unlikely thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unlikely/thesaurus/synonyms
ChicagoSmart Define. 2015. "unlikely thesaurus" https://smartdefine.org/unlikely/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unlikely thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unlikely/thesaurus/synonyms>.
MLASmart Define. "unlikely thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/unlikely/thesaurus/synonyms>