eristic

n. art of logical disputation; person who likes to dispute; controversialist

adj. pertaining to controversy or argument

Eristic, from the ancient Greek word Eris meaning wrangle or strife, often refers to a type of dialogue or argument where the participants do not have any reasonable goal. The aim is to win the argument and to not potentially discover a true or probable answer to any specific question or topic. Eristic dialogue is arguing for the sake of conflict, fighting, and often to see who can yell the loudest.
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(a.)
Alt. of Eristical
  

Noun
1. a person who disputes; who is good at or enjoys controversy
(synonym) disputant, controversialist
(hypernym) person, individual, someone, somebody, mortal, human, soul
(hyponym) contester
2. the art of logical disputation (especially if specious)
(hypernym) art, artistry, prowess
Adjective
1. given to disputation for its own sake and often employing specious arguments
(synonym) eristical
(similar) argumentative