adj
proven
PROO-vn
adj
1
Shown by evidence to be true, effective, or reliable.
"The drug has a proven track record of safety."
"They used a proven method to train the recruits."
How to Use Proven
Learner’s notesIn plain EnglishAlready demonstrated to be true or reliable, rather than just claimed or theoretical.
Common pairings
proven track record
proven method
not proven
Word Forms
more proven comparative, most proven superlative
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The drug has a _____ track record of safety.
Etymology
Developed as the past participle of "preve," a Middle English form of prove, and originally used in Scottish legal contexts — as in the verdict "not proven."