41 entries under unsure topic. ×

29
improbable(adjective, slight, extraordinary, strange, superb)
16
doubtful(adjective, slight, uncertain, shaky, dubious)
11
dubious(adjective, open, slight, uncertain, doubtful)
10
far-fetched(adjective, hard, strange, uncertain, fantastic)
9
questionable(adjective, open, uncertain, doubtful, shaky)
8
fishy(adjective, uncertain, doubtful, shaky, dubious)
5
moot(uncertain, doubtful, ambiguous, debatable)
5
suspect(adjective, open, obscure, uncertain, doubtful)
4
equivocal(uncertain, doubtful, ambiguous)
4
dubitable(adjective, uncertain, doubtful, shaky)
4
unclear(adjective, uncertain, doubtful, shaky, dubious)
3
debatable(adjective, uncertain, doubtful, shaky)
2
arguable(uncertain, doubtful, debatable)
2
disputable(uncertain, doubtful, debatable)
2
shady(adjective, open, obscure, uncertain, doubtful)
2
suspicious(adjective, open, obscure, uncertain, doubtful)
1
chancy(uncertain, doubtful, shaky, unpromising)
1
diffident(uncertain, doubtful)
1
fly-by-night(uncertain, doubtful)
1
hesitant(uncertain, doubtful)
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APASmart Define. (2015). unlikely thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unlikely/thesaurus/synonyms
ChicagoSmart Define. 2015. "unlikely thesaurus" https://smartdefine.org/unlikely/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unlikely thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unlikely/thesaurus/synonyms>.
MLASmart Define. "unlikely thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unlikely/thesaurus/synonyms>