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
Trump has also tried to replace Fed Governor Lisa Cook over unproven allegations of mortgage fraud.
—
Scott Horsley, NPR, 10 Dec. 2025
In 2014, he was called to testify before a Senate panel about his promotion of unproven medical claims about weight loss, according to ABC News.
—Charna Flam, PEOPLE, 9 Dec. 2025
However, the development of Starship HLS is facing delays due to the complexity and unproven nature of orbital cryogenic refueling.
—Chris Young, Interesting Engineering, 9 Dec. 2025
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
See All Example Sentences for unproven
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.
Scott Horsley, NPR, 10 Dec. 2025
In 2014, he was called to testify before a Senate panel about his promotion of unproven medical claims about weight loss, according to ABC News.
—Charna Flam, PEOPLE, 9 Dec. 2025
However, the development of Starship HLS is facing delays due to the complexity and unproven nature of orbital cryogenic refueling.
—Chris Young, Interesting Engineering, 9 Dec. 2025
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
See All Example Sentences for unproven
Cite this Entry
“Unproven.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unproven. Accessed 20 Dec. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share