78 entries under suspicious topic. ×

12
unclear(adjective, clear, open, rough, certain)
11
hesitant(adjective, open, uncertain, nervous, doubtful)
10
fly-by-night(adjective, uncertain, nervous, dishonest, doubtful)
9
incredible(adjective, great, extraordinary, unreasonable, amazing)
9
indeterminate(adjective, clear, obscure, rough, certain)
9
insecure(adjective, delicate, uncertain, nervous, unstable)
9
mistrustful(adjective, uncertain, nervous, doubtful, vague)
9
open(adjective, uncertain, nervous, unstable, doubtful)
9
shifty(adjective, weak, corrupt, uncertain, dishonest)
7
crooked(adjective, false, corrupt, dishonest, deceitful)
7
doubting(adjective, uncertain, dishonest, unsettled, hesitant)
7
slippery(adjective, delicate, uncertain, unstable, dishonest)
7
unbelievable(adjective, great, extraordinary, unreasonable, amazing)
7
wavering(adjective, open, uncertain, nervous, dishonest)
6
doubtable(adjective, uncertain, doubtful, unsettled)
6
leery
6
ridiculous(adjective, doubtful, ridiculous)
6
treacherous(adjective, corrupt, dishonest, deceitful, unpredictable)
5
borderline(adjective, clear, open, delicate, certain)
5
cynical(adjective, uncertain, hesitant, wary)
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APASmart Define. (2016). dubious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dubious/thesaurus/synonyms
ChicagoSmart Define. 2016. "dubious thesaurus" https://smartdefine.org/dubious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, dubious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dubious/thesaurus/synonyms>.
MLASmart Define. "dubious thesaurus" 4 March 2016. Web. 25 September 2026. <https://smartdefine.org/dubious/thesaurus/synonyms>