15 entries under contentious topic. ×

7
doubtful(adjective, open, obscure, uncertain, shaky)
6
disputable(adjective, dubious, suspect, shady)
6
dubious(adjective, uncertain, doubtful, unsettled, suspicious)
6
questionable(adjective, uncertain, doubtful, unsettled, shaky)
6
suspect(adjective, uncertain, doubtful, unsettled, shaky)
5
controversial(adjective, provocative, debated)
4
dubitable(adjective, uncertain, doubtful, shaky, unclear)
3
uncertain(adjective, doubtful, unsettled, dubious, suspicious)
2
controvertible(adjective, provocative, debated)
2
open to question(expression, adjective, idiom, dubious, suspect)
1
contestable(adjective, provocative, debated)
1
debateable(adjective, provocative, debated)
1
in dispute(adjective, provocative, debated)
1
open to discussion(adjective, provocative, debated)
1
under discussion(adjective, provocative, debated)
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APASmart Define. (2015). doubtable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/doubtable/thesaurus/synonyms
ChicagoSmart Define. 2015. "doubtable thesaurus" https://smartdefine.org/doubtable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, doubtable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/doubtable/thesaurus/synonyms>.
MLASmart Define. "doubtable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/doubtable/thesaurus/synonyms>