26 entries under debatable topic. ×

14
problematic(adjective, clear, open, difficult, certain)
12
doubtful(adjective, clear, certain, uncertain, dubious)
12
questionable(adjective, clear, certain, uncertain, dubious)
10
dubious(adjective, clear, certain, uncertain, doubtful)
9
moot(adjective, certain, uncertain, doubtful, dubious)
8
arguable(adjective, certain, uncertain, doubtful, dubious)
8
disputable(adjective, certain, uncertain, doubtful, dubious)
8
uncertain(adjective, clear, certain, doubtful, dubious)
6
iffy(adjective, clear, informal, certain, uncertain)
5
chancy(adjective, clear, certain, uncertain, dubious)
4
undecided
4
unsettled(adjective, uncertain, doubtful, dubious, questionable)
3
borderline(adjective, clear, certain, ambiguous)
3
in dispute
3
open to question(expression, adjective, idiom)
2
contestable
2
contested(adjective, certain)
2
mootable(adjective, certain)
1
betwixt and between
1
exceptionable(adjective, certain)
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APASmart Define. (2015). problematical thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/problematical/thesaurus/synonyms
ChicagoSmart Define. 2015. "problematical thesaurus" https://smartdefine.org/problematical/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, problematical thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/problematical/thesaurus/synonyms>.
MLASmart Define. "problematical thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/problematical/thesaurus/synonyms>