61 entries under dubious topic. ×

5
suspect(adjective, uncertain, doubtful, unsettled, shaky)
4
evasive(adjective, obscure, uncertain, doubtful, vague)
4
open(adjective, uncertain, nervous, doubtful, unsettled)
4
shaky(adjective, uncertain, nervous, doubtful)
3
iffy(adjective, clear, open, informal, certain)
3
muddled(adjective, uncertain, doubtful, faint, vague)
2
amphibological(adjective, obscure, rough, difficult, dark)
2
suspicious(adjective, uncertain, nervous, doubtful, unsettled)
2
thick(adjective, dull, obscure, doubtful, dim)
1
betwixt and between(expression, adjective, idiom, open, uncertain)
1
distrustful(adjective, uncertain, nervous, doubtful, hesitant)
1
doubtable(adjective, uncertain, unstable, doubtful, unsettled)
1
fishy(adjective, uncertain, doubtful, unsettled, shaky)
1
fluctuant(adjective, uncertain, nervous, doubtful, shaky)
1
fly-by-night(adjective, uncertain, nervous, doubtful, hesitant)
1
in a quandary(expression, adjective, idiom, uncertain, nervous)
1
insecure(adjective, uncertain, nervous, doubtful, unsettled)
1
lacking(adjective, uncertain, nervous, doubtful, shaky)
1
mistrustful(adjective, uncertain, nervous, doubtful, shaky)
1
rootless(adjective, uncertain, nervous, doubtful, shaky)
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APASmart Define. (2015). unclear thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unclear/thesaurus/synonyms
ChicagoSmart Define. 2015. "unclear thesaurus" https://smartdefine.org/unclear/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unclear thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unclear/thesaurus/synonyms>.
MLASmart Define. "unclear thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/unclear/thesaurus/synonyms>