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.

By promising trillions in future profits from other, completely unproven, businesses.

From MarketWatch • Jun. 10, 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

Navy officials have said the new battleship would be armed with unproven next-generation weapons including lasers and rail guns, which are weapons that use electricity to fire a projectile instead of gunpowder.

From The Wall Street Journal • May 12, 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