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.

Another problem is that many investors and lenders still see the space as risky and unproven, says Tyler Pullen, a researcher at the Terner Center for Housing Innovation at the University of California, Berkeley.

From The Wall Street Journal • Jun. 17, 2026

It also could have made farmers more cautious about using unproven and expensive new technology.

From Los Angeles Times • Jun. 15, 2026

But Human Rights Watch urged the government to scrap the scheme, describing it as "unproven technology" that will undermine the protections vulnerable children are entitled to.

From BBC • May 28, 2026

If completed as designed, it would require complicated and still unproven in-orbit refueling.

From Barron's • May 20, 2026

Elsewhere in his essay, Greene does not hide the fact that many of his fellow physicists think that string theory and the multiverse are extravagant and unproven.

From "The Sense of Style" by Steven Pinker