20 entries under clear topic. ×

13
doubtful(adjective, certain, uncertain, unsettled)
11
dubious(adjective, certain, uncertain, anxious)
9
problematic(adjective, open, certain, uncertain)
9
questionable(adjective, certain, uncertain, anxious)
8
in question(expression, adjective, idiom, obscure)
7
borderline(adjective, certain, uncertain, doubtful)
7
iffy(adjective, informal, certain, uncertain)
7
problematical(adjective, obscure, certain, uncertain)
7
uncertain(adjective, certain, anxious, doubtful)
6
equivocal(adjective, certain, uncertain, anxious)
5
ambiguous(adjective, certain, uncertain, anxious)
5
indecisive(adjective, certain, uncertain, anxious)
5
unsure(adjective, obscure, certain, uncertain)
4
inconclusive(adjective, obscure, certain, uncertain)
3
chancy(adjective, certain, uncertain, doubtful)
3
clouded(adjective, obscure, certain, uncertain)
3
indeterminate(adjective, certain, uncertain, doubtful)
3
unclear(adjective, obscure, certain, uncertain)
2
at issue(adjective, idiom, certain)
2
in doubt(expression, adjective, idiom, obscure)
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APASmart Define. (2015). dubitable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/dubitable/thesaurus/synonyms
ChicagoSmart Define. 2015. "dubitable thesaurus" https://smartdefine.org/dubitable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, dubitable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/dubitable/thesaurus/synonyms>.
MLASmart Define. "dubitable thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/dubitable/thesaurus/synonyms>