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ad. In a conclusive manner; with finality.

ad. In the way of conclusion; decisively; positively.

In a conclusive manner; decisively; with final determination: as, the point of law is conclusively settled.

ad. in a conclusive way

"It emerges conclusively from the effects obtained from the most varied sites of stimulation falling in the area named that here too no grouping is found in contrast, for example in the formation of nuclei; each particular syndrome shows a fairly large scatter."

decisively    positively   

effusively    exclusively