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.

Nuclear fusion, which joins atoms, is the reaction that powers the sun; the technology remains unproven.

From MarketWatch • May 18, 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

More recently, reports from HHS-linked policy shifts show the agency removing or revising longstanding public health warnings, including content related to unproven medical treatments, further intensifying concerns among health experts about institutional credibility.

From Salon • May 9, 2026

The science at that time was unproven and had never been used in any criminal proceedings, but the group told The Times they were confident in their findings.

From Los Angeles Times • May 7, 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