unproven

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

While the idea was influential, it remained unproven because carbenes were known to be too unstable, especially in water, to capture or study.

From Science Daily • Apr. 11, 2026

But as attractive as they sound, SMRs are viewed as unproven at commercial scale.

From BBC • Apr. 3, 2026

And during oral arguments in January, both the liberal and conservative flanks of the court expressed doubts in the government’s claim that Trump could oust Cook on the basis of an unproven allegation.

From Slate • Mar. 19, 2026

It said the suit centers on "extremely serious, though unproven, allegations against the American technology firm."

From Barron's • Mar. 10, 2026

Fact: Every great scientist knows that an unproven theory isn’t exactly science, but the idea that Sir Fig Newton would live a long, healthy life with the silent cat killer was about to come true.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas