unproven
adjective
un·prov·en
ˌən-ˈprü-vən 
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
The concept also remains unproven; SpaceX intends to test Starship's in-flight refueling system on an upcoming launch.
—
Brett Tingley, Space.com, 5 Dec. 2025
Like the metaverse, though, AI’s financial return is far from certain, and Wall Street has expressed concern about Zuck’s willingness to spend astronomically on unproven tech, even one as popular as AI.
—Allison Morrow, CNN Money, 4 Dec. 2025
But even for Anthropic, an AI company that’s currently projected to reach profitability years faster than OpenAI, there are big questions around the overall amount of investment pouring into supporting a young industry with unproven business models.
—Alyson Shontell, Fortune, 3 Dec. 2025
But there are signs that the market is growing skeptical that the costs are justified by an as-yet unproven technology.
—Bloomberg, Mercury News, 3 Dec. 2025
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Brett Tingley, Space.com, 5 Dec. 2025
Like the metaverse, though, AI’s financial return is far from certain, and Wall Street has expressed concern about Zuck’s willingness to spend astronomically on unproven tech, even one as popular as AI.
—Allison Morrow, CNN Money, 4 Dec. 2025
But even for Anthropic, an AI company that’s currently projected to reach profitability years faster than OpenAI, there are big questions around the overall amount of investment pouring into supporting a young industry with unproven business models.
—Alyson Shontell, Fortune, 3 Dec. 2025
But there are signs that the market is growing skeptical that the costs are justified by an as-yet unproven technology.
—Bloomberg, Mercury News, 3 Dec. 2025
See All Example Sentences for unproven
Cite this Entry
“Unproven.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unproven. Accessed 8 Dec. 2025.
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