28 entries under unpromising topic. ×

3
suspect(adjective, uncertain, doubtful, shaky, unsure)
2
speculative(doubtful, shaky, vague, unsure, unlikely)
1
fishy(adjective, uncertain, doubtful, shaky, unsure)
1
obscure(adjective, shaky, indefinite, unlikely, equivocal)
1
open(adjective, uncertain, doubtful, shaky, unsure)
1
shady(adjective, uncertain, doubtful, shaky, unsure)
1
uneasy(shaky, unlikely)
0
contingent(shaky, unlikely)
0
dicey(shaky, unlikely)
0
disreputable(shaky, unlikely)
0
doubtable(uncertain, doubtful, shaky, unlikely)
0
far-fetched(uncertain, doubtful, shaky, unsure, unlikely)
0
fat chance(expression, shaky, unlikely)
0
hazardous(shaky, unlikely)
0
hazy(doubtful, shaky, vague, unsure, unlikely)
0
improbable(uncertain, doubtful, shaky, unsure, unlikely)
0
impugnable(shaky, unlikely)
0
indistinct(doubtful, shaky, vague, unsure, unlikely)
0
insecure(doubtful, shaky, vague, unsure, unlikely)
0
long shot(expression, shaky, unlikely)
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APASmart Define. (2015). in doubt thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/in_doubt/thesaurus/synonyms
ChicagoSmart Define. 2015. "in doubt thesaurus" https://smartdefine.org/in_doubt/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, in doubt thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/in_doubt/thesaurus/synonyms>.
MLASmart Define. "in doubt thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/in_doubt/thesaurus/synonyms>