165 entries under doubtful topic. ×

1
dynamite(adjective, delicate, uncertain, unstable)
1
fitful(irregular, vague, unpredictable, unreliable)
1
fluctuant(adjective, unusual, uncertain, nervous, unstable)
1
fluctuating(adjective, weak, false, uncertain, sensitive)
1
hairy(adjective, delicate, uncertain, unstable)
1
hanging by a thread(expression, adjective, idiom, delicate, uncertain)
1
hundred-to-one(unlikely, implausible)
1
impugnable(adjective, open, delicate, uncertain, unstable)
1
in a quandary(expression, adjective, idiom, uncertain, nervous)
1
lacking(adjective, uncertain, nervous, suspicious)
1
loaded(adjective, delicate, uncertain, unstable)
1
mootable(adjective, uncertain, unsure, questionable)
1
not expected(expression, unlikely, implausible)
1
not likely(expression, adjective, unreasonable, flimsy)
1
on thin ice(expression, adjective, idiom, delicate, uncertain)
1
outside chance(expression, unlikely, implausible, improbable)
1
rare(weak, unlikely, implausible, improbable)
1
rugged(adjective, delicate, uncertain, unstable)
1
slim(unlikely, implausible)
1
slim and none(expression, idiom, unlikely, implausible)
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APASmart Define. (2016). dubious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/dubious/thesaurus/synonyms
ChicagoSmart Define. 2016. "dubious thesaurus" https://smartdefine.org/dubious/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, dubious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/dubious/thesaurus/synonyms>.
MLASmart Define. "dubious thesaurus" 4 March 2016. Web. 26 September 2026. <https://smartdefine.org/dubious/thesaurus/synonyms>