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.
Longevity clinics are charging anywhere from a few hundred dollars to more than $150,000 a year for full-body scans, genetic sequencing, hormone optimization and regenerative therapies, and patients are signing up in record numbers despite warnings that many of the treatments remain unproven. Hanna Wickes, Miami Herald, 18 May 2026 Red light therapy and cold exposure have meaningful research behind them, while NAD+ drips, stem cell injections and peptide therapy remain largely unproven for anti-aging — and can come with steep costs and quality concerns. Hanna Wickes, Fort Worth Star-Telegram, 18 May 2026 Not the joy of watching our teammates grow, or not the joy of watching guys who were unproven start to solidify themselves, as well, through leadership, through chemistry. Zack Cox, Boston Herald, 18 May 2026 But beating them in the playoffs with a young, unproven team is something altogether different. Adam Zagoria, Forbes.com, 18 May 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 20 May. 2026.

Legal Definition

unproven

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

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