Adjective
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.
Given to argument; characterized by argument; disputatious; as, an argumentative writer.
Source: Webster's dictionaryThe denizens of Citizens Service Houses are not, as a rule, gifted with a lot of common sense, but they often make up for that by being extremely argumentative and vindictive. Robert Silverberg
Most of these handpicked leaders were lawyers, and a few were physicians or educators; most had earned doctoral degrees. Among the more exotic specimens were Otto Ohlendorf, a handsome but argumentative young economist who had fallen into disfavor with Himmler. Otto Ohlendorf
RACK, n. An argumentative implement formerly much used in persuading devotees of a false faith to embrace the living truth. As a call to the unconverted the rack never had any particular efficacy, and is now held in light popular esteem. Ambrose Bierce
I do, however, feel reasonably strongly the sense that the job of a piece of argumentative scholarly non-fiction is not the same as the job of a piece of fiction. China Miéville
Argumentative exhibitions bring issues to life in a way that very much irritates traditional curators who want to see their pictures valued for themselves. Jonathan Miller
I do flip between being chatty and argumentative - and being a psycho-loner werewolf. Peter Hammill