64 entries under doubtful topic. ×

22
questionable(adjective, honest, unusual, strange, corrupt)
19
dubious(adjective, unusual, strange, corrupt, uncertain)
18
suspect(verb, adjective, honest, uncertain)
18
suspicious(adjective, honest, unusual, strange, uncertain)
17
fishy(adjective, bad, wrong, fake, honest)
11
untrustworthy(adjective, false, corrupt, uncertain, dishonest)
8
fly-by-night(adjective, bad, wrong, uncertain, dishonest)
8
uncertain(adjective, honest, unsettled, vague)
8
unreliable(adjective, uncertain, dishonest, deceitful)
5
equivocal(adjective, honest, uncertain, dubious)
4
debatable(adjective, uncertain, shaky, dubious)
4
indefinite(uncertain, shaky, dubious, unlikely)
4
mysterious(adjective, unusual, strange, uncertain)
4
problematic(adjective, uncertain, unsettled, shaky)
3
ambiguous(adjective, uncertain, shaky, dubious)
3
disputable(adjective, uncertain, dubious, suspect)
3
dubitable(adjective, uncertain, shaky, dubious)
3
iffy(adjective, uncertain, shaky, dubious)
3
odd(adjective, unusual, strange, irregular)
3
unsure(adjective, uncertain, dishonest, unsettled)
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APASmart Define. (2016). shady thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/shady/thesaurus/synonyms
ChicagoSmart Define. 2016. "shady thesaurus" https://smartdefine.org/shady/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, shady thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/shady/thesaurus/synonyms>.
MLASmart Define. "shady thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/shady/thesaurus/synonyms>