Provoking strife, controversy or discord.
One who makes specious arguments; one who is disputatious.
A type of dialogue or argument where the participants do not have any reasonable goal. The aim is to argue for the sake of conflict, and often to see who can yell the loudest.
Insulting in manner or words, particularly in an arrogant or insubordinate manner.
Rude.
A person who is insolent.