argumentative

Of or relating to argumentation; specifically, presenting a logical argument or line of reasoning; argumentive, discursive.

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.

There muſt be a Special Demurrer to a Negative Pregnant, that is, a Negative Plea, which doth alſo contain in it an Affirmative; and to an Argumentative Plea, that is a Plea which concludes nothing directly, but only by Way of Argument or Reaſoning, for the Court will intend every Plea to be good till the contrary doth appear.

Prone to argue or dispute.

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

He found that in an argumentative discussion, when an adversary responded argumentatively, male and female subjects did not differ in their preference for message strategies. However, when the adversary responded with verbal aggression, male and female subjects differed in their responses; female subjects were more likely to select an argumentative strategy, while male subjects were more likely to select verbally aggressive strategies.