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
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Green similarly criticized efforts by Kennedy to promote vitamin A or cod liver oil and the inhaled steroid Butesonide for measles in Texas, and people profiting from selling these unproven supplements. Judy Stone, Forbes.com, 21 Jan. 2026 Don’t jump into anything unproven just to be spontaneous. Magi Helena, Dallas Morning News, 20 Jan. 2026 Kennedy has also promoted unproven treatments, including leucovorin, a synthetic form of vitamin B9 or folate, which the body needs to make healthy blood cells. Berkeley Lovelace Jr, NBC news, 20 Jan. 2026 The report cites recreational overlap as limited and says population-level impacts from human activity remain unproven. Spencer Wilson, CBS News, 19 Jan. 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

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Cite this Entry

“Unproven.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unproven. Accessed 28 Jan. 2026.

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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