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.
The Dolphins have an unproven cast of edge rushers and are still searching for four who can do an effective job rushing the quarterback and setting edges. — Omar Kelly, Miami Herald, 4 Sep. 2026 Around that time, the Department of Health and Human Services asked us to revise the CDC’s information for clinicians to include use of these unproven and potentially harmful treatments in children with measles. — Demetre Daskalakis, STAT, 4 Sep. 2026 Brand Equity One of the biggest mistakes new franchisees make is investing in unproven concepts. — Angelo Chavez, Forbes.com, 4 Sep. 2026 The Eagles lost significant personnel from a two-win team and are betting on an unproven quarterback situation. — Manny Navarro, New York Times, 3 Sep. 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 7 Sep. 2026.

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Legal Definition

unproven

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

More from Merriam-Webster on unproven

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