15 entries under contentious topic. ×

6
arguable(adjective, uncertain, doubtful, dubious, questionable)
5
disputable(adjective, uncertain, doubtful, dubious, questionable)
5
doubtful(adjective, uncertain, dubious, questionable)
5
dubious(adjective, uncertain, doubtful, questionable)
5
moot(adjective, uncertain, doubtful, dubious, questionable)
5
questionable(adjective, uncertain, doubtful, dubious)
4
uncertain(adjective, doubtful, dubious, questionable)
3
contestable(adjective, uncertain, doubtful, dubious, questionable)
3
in dispute(adjective, uncertain, doubtful, dubious, questionable)
3
suspect(adjective, uncertain, doubtful, dubious, shady)
2
controvertible(adjective, uncertain, doubtful, dubious)
2
doubtable(adjective, dubious, suspect, shady)
1
debateable(adjective, provocative, debated)
1
open to discussion(adjective, uncertain, doubtful, dubious)
1
under discussion(adjective, provocative, debated)
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APASmart Define. (2015). open to question thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/open_to_question/thesaurus/synonyms
ChicagoSmart Define. 2015. "open to question thesaurus" https://smartdefine.org/open_to_question/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, open to question thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/open_to_question/thesaurus/synonyms>.
MLASmart Define. "open to question thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/open_to_question/thesaurus/synonyms>