conclusive

One reason it's hard to conclusively decide whether Adderall works as a " smart pill" is because its effects are so diffuse.

I need only refer to , which is conclusively described as a hook for extracting the dead foetus.

Nothing could prove her case so conclusively as his avowal that the letter was in his hands.

I take the case of Mr. Stretch first, in order to eliminate it conclusively.

"Which was to be proved," remarked Barney, conclusively, handing Durant his mail.

This was proved only too conclusively by an incident which occurred one night.