110 entries under doubtful topic. ×

9
disputable(noun, adjective, uncertain, dubious)
9
problematic(adjective, uncertain, nervous, unsettled)
9
questionable(noun, adjective, uncertain, unsettled)
8
hesitating(adjective, weak, uncertain, unsettled)
8
on the fence(expression, adjective, idiom, open, indifferent)
8
unclear(adjective, open, uncertain, definite)
8
wishy-washy(adjective, open, weak, uncertain, definite)
7
controversial(noun, adjective, uncertain, unsettled)
7
fickle(adjective, weak, uncertain, hesitant)
7
precarious(adjective, uncertain, vague, unsure)
6
borderline(adjective, open, uncertain, definite)
6
equivocal(adjective, open, uncertain, definite)
6
erratic(adjective, vague, hesitant, dubious)
6
inconstant(adjective, vague, hesitant, unsure)
6
indeterminate(adjective, uncertain, unsettled, vague)
6
of two minds(expression, adjective, idiom, open, uncertain)
6
suspicious(uncertain, nervous, vague, hesitant)
5
iffy(adjective, open, uncertain, definite)
5
incredulous
5
infirm(adjective, weak, uncertain, unsure)
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APASmart Define. (2015). undecided thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/undecided/thesaurus/synonyms
ChicagoSmart Define. 2015. "undecided thesaurus" https://smartdefine.org/undecided/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, undecided thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/undecided/thesaurus/synonyms>.
MLASmart Define. "undecided thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/undecided/thesaurus/synonyms>