49 entries under doubtful topic. ×

20
debatable(noun, adjective, certain, uncertain)
18
disputable(noun, adjective, open, certain, uncertain)
18
moot(noun, adjective, certain, uncertain)
17
questionable(noun, adjective, certain, uncertain)
15
controversial(noun, adjective, uncertain, unsettled)
14
uncertain(noun, adjective, certain, uncertain)
13
problematic(adjective, open, certain, uncertain)
11
dubious(noun, adjective, uncertain, unsettled)
9
undecided(noun, adjective, uncertain, unsettled)
8
open(adjective, uncertain, unsettled, hesitant)
8
problematical(adjective, certain, uncertain, dubious)
8
unsure(adjective, uncertain, questionable, debatable)
7
unsettled(noun, adjective, uncertain, vague)
6
unresolved(adjective, unsettled, undecided, debatable)
5
contentious(adjective, dubious, questionable, provocative)
5
indecisive(adjective, uncertain, unsettled, vague)
5
suspect(adjective, uncertain, dubious, tricky)
4
suspicious(adjective, uncertain, dubious, unsure)
3
at issue(expression, adjective, dubious, questionable)
3
dubitable(adjective, uncertain, unsettled, dubious)
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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>