75 entries under adjective topic. ×

9
controversial(uncertain, doubtful, dubious, contentious)
9
debatable(uncertain, controversial)
9
disputable(uncertain, doubtful, vague, dubious)
9
moot(uncertain, doubtful, arguable)
9
questionable
7
arguable
5
deniable
4
controvertible(contentious, provocative, debated)
4
doubtful
4
problematic
3
challengeable
3
dubious
3
hypothetical(imaginary, theoretical, supposed, assumed)
3
problematical
2
at issue
2
insecure
2
open to question(expression, idiom, uncertain, dubious)
2
precarious
2
refutable(vague, imaginary, theoretical, supposed)
2
tentative
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APASmart Define. (2015). contestable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/contestable/thesaurus/synonyms
ChicagoSmart Define. 2015. "contestable thesaurus" https://smartdefine.org/contestable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, contestable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/contestable/thesaurus/synonyms>.
MLASmart Define. "contestable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/contestable/thesaurus/synonyms>