Of or characterized by argument: an argumentative discourse. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "argumentative" in a sentence
"As a consequence of a psychological phenomenon that might be called "argumentative reasoning," we're very skillful at arguing a particular case."
"But to say if some of them owned slaves or thought of women or minorities as less than equal, then that must mean they were wrong on the 2nd, is just plain argumentative."
"It was one of the toughest assignments of senior year -- a 4,000-word argumentative essay on a controversial topic."