1. not proven; not established as true or valid by evidence or demonstration
Usage: often used in legal, scientific, or academic contexts

Examples

• The defendant's nonproven claims were dismissed by the court.
• Scientists remain skeptical of the nonproven theory.
• The company's nonproven product failed to gain regulatory approval.
• His nonproven allegations lacked credible evidence.
• The nonproven method has not yet been tested in clinical trials.
• Despite the nonproven nature of the hypothesis, researchers decided to investigate further.