argumentative

I proceed next to treat of the argumentative or reaſoning Part of a Diſcourſe. In whatever place, or on whatever ſubject one ſpeaks, this beyond doubt is of the greateſt conſequence.

Your host was in his turn eloquent,—authoritative,—facetious,—argumentative,—precatory,—pathetic, above all, pertinacious.