47 entries under adjective topic. ×

9
dubious(clear, obscure, certain, uncertain)
8
doubtful(clear, obscure, certain, uncertain)
7
dubitable(clear, obscure, certain, uncertain)
7
in dispute
6
problematic(clear, obscure, certain, uncertain)
6
questionable(clear, weak, obscure, certain)
5
arguable(unsettled, undecided)
5
debatable(uncertain, unsettled, dubious, equivocal)
5
moot(uncertain, unsettled, dubious, undecided)
5
problematical(clear, certain, ambiguous)
4
ambiguous(clear, obscure, certain, uncertain)
4
at issue(expression, idiom)
4
controversial(unsettled, undecided)
4
disputable
4
uncertain(clear, weak, obscure, certain)
4
under consideration
3
in doubt(obscure, uncertain, anxious, doubtful)
3
open(uncertain, unsettled, dubious, undecided)
3
suspect
3
suspicious
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APASmart Define. (2015). in question thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/in_question/thesaurus/synonyms
ChicagoSmart Define. 2015. "in question thesaurus" https://smartdefine.org/in_question/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, in question thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/in_question/thesaurus/synonyms>.
MLASmart Define. "in question thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/in_question/thesaurus/synonyms>