unproven

adjective

un·​prov·​en ˌən-ˈprü-vən How to pronounce unproven (audio)
British also -ˈprō-
: 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 space agency paid a bargain price for this launch of the two ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) spacecraft—just $20 million, a discount reflecting New Glenn’s unproven status when NASA inked that deal in 2023. PC Magazine, 14 Nov. 2025 After, all Green Bay has lost to the Cleveland Browns and the Panthers, and Love is still largely unproven. Matthew Schmidt, MSNBC Newsweek, 10 Nov. 2025 The Celtics prevailed Sunday, moving to 5-6 on the season, because their bench of castaways and unproven youngsters delivered. Jay King, New York Times, 10 Nov. 2025 In recent weeks, Johnston has made unproven claims about two high-profile crimes, resulting in questions about his credibility after media outlets reported on the comments. Elliott Wenzler, Denver Post, 8 Nov. 2025 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

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Cite this Entry

“Unproven.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unproven. Accessed 18 Nov. 2025.

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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