9
confutable(adjective, confutation)
8
questionable
6
disprovable(adjective, true, real)
5
debatable(adjective, true, real)
5
deniable
5
disputable(adjective, true, real)
4
confutative
3
arguable
3
contestable(adjective, vague, imaginary, theoretical, supposed)
3
controversial
3
defeasible
3
doubtful
3
dubious
3
hypothetical(adjective, imaginary, theoretical, supposed, assumed)
3
moot
3
problematic
3
suspicious
3
unsustainable(adjective, true, real)
2
rebuttable
1
at issue
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APASmart Define. (2015). refutable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/refutable/thesaurus/synonyms
ChicagoSmart Define. 2015. "refutable thesaurus" https://smartdefine.org/refutable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, refutable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/refutable/thesaurus/synonyms>.
MLASmart Define. "refutable thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/refutable/thesaurus/synonyms>