31 entries under dubious topic. ×

20
debatable(noun, adjective, certain, uncertain, doubtful)
18
disputable(noun, adjective, open, certain, uncertain)
18
moot(noun, adjective, certain, uncertain, doubtful)
17
questionable(noun, adjective, certain, uncertain, doubtful)
15
controversial(noun, adjective, uncertain, doubtful, unsettled)
14
uncertain(noun, adjective, certain, uncertain, doubtful)
13
doubtful(noun, adjective, certain, uncertain, unsettled)
13
problematic(adjective, open, certain, uncertain, doubtful)
9
undecided(noun, adjective, uncertain, doubtful, unsettled)
8
problematical(adjective, certain, uncertain, doubtful)
7
unsettled(noun, adjective, uncertain, doubtful, vague)
6
open to question(expression, adjective, idiom, uncertain)
5
contentious(adjective, doubtful, questionable, provocative)
5
indecisive(adjective, uncertain, doubtful, unsettled, vague)
5
suspect(adjective, uncertain, doubtful, tricky)
4
suspicious(adjective, uncertain, doubtful, unsure)
3
at issue(expression, adjective, doubtful, questionable)
3
dubitable(adjective, uncertain, doubtful, unsettled)
2
ambiguous(adjective, uncertain, doubtful, unsettled, vague)
2
iffy(uncertain, doubtful, tricky, questionable)
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APASmart Define. (2015). arguable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/arguable/thesaurus/synonyms
ChicagoSmart Define. 2015. "arguable thesaurus" https://smartdefine.org/arguable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, arguable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/arguable/thesaurus/synonyms>.
MLASmart Define. "arguable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/arguable/thesaurus/synonyms>