unproven

adjective

un·​prov·​en ˌən-ˈprü-vən How to pronounce unproven (audio)
British also -ˈprō-
Synonyms of unprovennext
: not tested and shown to be good, true, or useful : not proven
an unproven allegation/theory
unproven benefits
unproven technology

Examples of unproven in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Dark matter, meanwhile, is thought to be the glue that holds galaxies and other massive structures in the universe together, but again, its nature is an enigma and its existence remains unproven. — Claire Cameron, Scientific American, 30 Aug. 2026 Carolina has one of the best defensive linemen in the league in Derrick Brown … and then some unproven players around him. — Alex Zietlow, Charlotte Observer, 28 Aug. 2026 What remains unproven is the company’s ability to install it repeatedly, control costs, maintain performance, standardize contracts and assemble a portfolio that institutional capital can underwrite. — Rob Day, Forbes.com, 28 Aug. 2026 Verrett has been criticized for promoting conspiracy theories and unproven medical treatments. — Emma Kershaw, PEOPLE, 28 Aug. 2026 See All Example Sentences for unproven

Word History

First Known Use

1563, in the meaning defined above

Time Traveler
The first known use of unproven was in 1563

Rhymes for unproven

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Browse Nearby Words

unproved
unproven
unprovide
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Cite this Entry

“Unproven.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unproven. Accessed 2 Sep. 2026.

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Legal Definition

unproven

adjective
un·​prov·​en
ˌən-ˈprü-vən
: not proven
an unproven allegation

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