75 entries under vague topic. ×

41
dubious(noun, adjective, clear, great, rough)
38
doubtful(noun, adjective, clear, great, obscure)
35
uncertain(noun, adjective, clear, rough, honest)
27
debatable(noun, adjective, certain, uncertainty, uncertain)
26
disputable(noun, adjective, open, certain, uncertainty)
21
suspect(verb, adjective, weak, great, honest)
19
unreliable(adjective, uncertainty, uncertain, true, dishonest)
18
problematic(adjective, clear, open, rough, certain)
16
unsure(adjective, clear, rough, certain, uncertain)
12
equivocal(adjective, clear, obscure, rough, honest)
11
ambiguous(adjective, clear, rough, certain, uncertain)
11
unsettled(noun, adjective, open, rough, uncertain)
9
indefinite(adjective, obscure, rough, uncertain, doubtful)
9
undecided(noun, adjective, uncertain, doubtful, unsettled)
7
indeterminate(adjective, clear, certain, uncertain, doubtful)
7
unclear(adjective, clear, rough, certain, uncertain)
7
unresolved(adjective, uncertain, doubtful, unsettled)
6
indecisive(adjective, clear, certain, uncertain, anxious)
6
obscure(adjective, uncertain, doubtful, dubious)
5
ambivalent(adjective, uncertain, doubtful, hesitant)
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APASmart Define. (2015). questionable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/questionable/thesaurus/synonyms
ChicagoSmart Define. 2015. "questionable thesaurus" https://smartdefine.org/questionable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, questionable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/questionable/thesaurus/synonyms>.
MLASmart Define. "questionable thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/questionable/thesaurus/synonyms>