60 entries under dubious topic. ×

47
vague(adjective, clear, open, rough, certain)
35
uncertain(adjective, clear, open, rough, delicate)
34
equivocal(adjective, cover, clear, open, obscure)
28
indefinite(adjective, open, rough, uncertainty, uncertain)
27
unclear(adjective, clear, open, obscure, rough)
23
obscure(adjective, cover, clear, rough, dark)
19
doubtful(adjective, clear, open, rough, delicate)
18
enigmatic(adjective, cover, obscure, rough, dark)
18
indeterminate(adjective, clear, rough, certain, uncertainty)
18
indistinct(adjective, rough, uncertainty, uncertain, doubtful)
16
cryptic(adjective, obscure, dark, uncertain, doubtful)
16
questionable(adjective, clear, rough, certain, uncertain)
12
problematic(adjective, clear, open, rough, delicate)
11
mysterious(adjective, obscure, dark, uncertain, doubtful)
10
borderline(adjective, clear, open, delicate, certain)
9
clouded(adjective, clear, obscure, certain, uncertain)
9
evasive(adjective, false, uncertain, careful, doubtful)
9
oracular(adjective, dark, uncertainty, uncertain, doubtful)
8
ambivalent(adjective, open, uncertain, doubtful, vague)
8
undefined(adjective, weak, dark, uncertainty, uncertain)
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APASmart Define. (2016). ambiguous thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/ambiguous/thesaurus/synonyms
ChicagoSmart Define. 2016. "ambiguous thesaurus" https://smartdefine.org/ambiguous/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, ambiguous thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/ambiguous/thesaurus/synonyms>.
MLASmart Define. "ambiguous thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/ambiguous/thesaurus/synonyms>