The Collaborative International Dictionary
Argumentative \Ar`gu*men"ta*tive\, a.
Consisting of, or characterized by, argument; containing a process of reasoning; as, an argumentative discourse.
Adductive as proof; indicative; as, the adaptation of things to their uses is argumentative of infinite wisdom in the Creator. [Obs.]
Given to argument; characterized by argument; disputatious; as, an argumentative writer. [1913 Webster]
-- Ar`gu*men"ta*tive*ly, adv. -- Ar`gu*men"ta*tive*ness, n.
Wiktionary
n. the state of being argumentative
Usage examples of "argumentativeness".
When at last she spoke, to Magda’s relief, there was not a trace of argumentativeness in her voice.
Sixth, there are all kinds of conflicts that interfere with communication: competition, attempts to get one's way, argumentativeness, "if it weren't for you" games, hostile humor, teasing, etc.
His sarcastic wit, lack of respect for higher authority, confidence in his own opinions and general argumentativeness prevented him from hiding his light under a bushel.
Brendan said, raising his voice to quash their argumentativeness, "downhill and cross-country skiing, skidoo and other snow-based sports, canoeing and kayaking on designated rivers, trekking on foot or mounted, hunting and fishing.