proven
UK /ˈpɹuː.vn̩/ US /ˈpɹuː.vn̩/
adj 1
Definitions
adj
1
Having been proved; having proved its value or truth.
It's a proven fact that morphine is a more effective painkiller than acetaminophen is.
Mass lexical comparison is not a proven method for demonstrating relationships between languages.
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