Argumentative \Ar`gu*men"ta*tive\, a.

1. Consisting of, or characterized by, argument; containing a process of reasoning; as, an argumentative discourse.

2. Adductive as proof; indicative; as, the adaptation of things to their uses is argumentative of infinite wisdom in the Creator. [Obs.]

3. Given to argument; characterized by argument; disputatious; as, an argumentative writer. --Ar`gu*men"ta*tive*ly, adv. -- Ar`gu*men"ta*tive*ness, n.

Source: Webster's Revised Unabridged Dictionary (1913)