Definition: established beyond doubt
Usage: a proven liar; a Soviet leader of proven shrewdness
Similar words: established
Definition: shown to be valid beyond a reasonable doubt
Usage: the established facts in the case
Similar words: evidenced
Definition: supported by evidence
Usage: their evidenced friendliness to the US
Similar words: tried, tested, well-tried
Definition: tested and proved useful or correct
Usage: a tested method
Similar words: verified
Definition: proved to be true
Usage: a verified claim