conclusive

DNA traces were discovered on the airbag – and became the conclusive proof that Challis was at the wheel at the time of the crash.

"I was not persuaded that even if a survey was carried out, that it would be conclusive one way or the other, that it would produce incontrovertible data."

The issue is among the most intensively studied in the scientific literature, and the results among the most conclusive: There’s no connection.

Dates inscribed on many of the coins provided the most conclusive proof of the time in which the ship had sailed and had met with disaster.

Nvidia has also shrugged off previous disappointments to roar higher so the immediate reaction might not be conclusive.