Disputant
Part of speech: noun
Definition: A participant in a dispute.
Eristic
Part of speech: adjective
Definition: Of something or someone provoking strife, controversy or discord.
Part of speech: noun
Definition: One who makes specious arguments; one who is 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.