12
demonstrable(adjective, clear, hard, sound, plain)
8
confirmable(adjective, clear, hard, sound, plain)
8
verifiable(adjective, clear, hard, sound, plain)
6
certain(adjective, valid, undoubtable, inferable)
6
supportable(adjective, true, real, demonstrable)
4
checkable(adjective, true, real)
4
incontrovertible
4
testable(adjective, valid, watertight, demonstrable, inferable)
3
conclusive(adjective, inferable)
3
evincible
3
incontestable(adjective, certain)
3
indisputable
3
irrefutable
3
obvious
3
self-evident
3
undeniable
3
unquestionable
2
attestable
2
certifiable(adjective, demonstrable)
2
demonstrative
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APASmart Define. (2016). provable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/provable/thesaurus/synonyms
ChicagoSmart Define. 2016. "provable thesaurus" https://smartdefine.org/provable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, provable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/provable/thesaurus/synonyms>.
MLASmart Define. "provable thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/provable/thesaurus/synonyms>