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

From Barron's • May 20, 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

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 choice was rational: Long-term safety data was unavailable, efficacy thresholds hadn’t been cleared, and further investment in an unproven compound risked starving proven therapies of resources.

From The Wall Street Journal • May 5, 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