Proven (adjective) — مُثبت أو مُؤكد النجاح بالتجربة: Shown to be true or effective by experience or evidence. Below are 7 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Confirmed as true or accurate.
Already verified as true — confirmed names the proven state, not confirm (the act) and not confirmation (the document).
Tested and proved reliable.
Consistently good in quality or performance; able to be trusted.
establishedtesteddemonstrated