unprovable

adjective

un·​prov·​able ˌən-ˈprü-və-bəl How to pronounce unprovable (audio)
Synonyms of unprovablenext
: unable to be proved : not provable
an unprovable theory
unprovably adverb

Examples of unprovable in a Sentence

Recent Examples on the Web
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The meat of the documentary is the different SNL presidents talking about their individual impressions, their origins and their causally unprovable impacts on the perception of those presidents. Daniel Fienberg, HollywoodReporter, 10 June 2026 His first incompleteness theorem states that there are necessarily unprovable statements in all sufficiently strong, contradiction-free systems. Manon Bischoff, Scientific American, 26 May 2026 His first incompleteness theorem states that in every formal system of mathematics that is rich enough to express arithmetic, there will be propositions that are both true and unprovable. Quanta Magazine, 18 May 2026 Given that many of Epstein’s correspondents are redacted and that threads start and stop randomly, many of the emails are perfect building blocks for constructing plausible but ultimately unprovable narratives. Charlie Warzel, The Atlantic, 14 Nov. 2025 See All Example Sentences for unprovable

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of unprovable was in the 14th century

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Cite this Entry

“Unprovable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unprovable. Accessed 16 Jun. 2026.

Legal Definition

unprovable

adjective
un·​prov·​able
ˌən-ˈprü-və-bəl
: not provable

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