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.

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

From Barron's • Jun. 4, 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

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

The Bernstein team, for its part, said that investors don’t so much have to place bets on whether copper-based technologies win out over the newer but more unproven school of co-packaged optics.

From MarketWatch • May 11, 2026

He was well-read and intelligent, but young and unproven.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin