Webster's Revised Unabridged Dictionary · 1913

Discoursive

Discoursive , adjective

[See Discursive.]

1.
Reasoning; characterized by reasoning; passing from premises to consequences; discursive. — Milton
2.
Containing dialogue or conversation; interlocutory.
The epic is everywhere interlaced with dialogue or discoursive scenes. — Dryden
3.
Inclined to converse; conversable; communicative; as, a discoursive man. [Rare]

Discoursive , noun

The state or quality of being discoursive or able to reason. [Rare] — Feltham