noun
a person who disputes; who is good at or enjoys controversy
• Hyponyms:
↑contester, ↑accuser, ↑debater, ↑arguer, ↑denier, ↑hairsplitter, ↑logomach, ↑logomachist, ↑obstructionist, ↑obstructor, ↑obstructer, ↑resister, ↑thwarter, ↑quarreler, ↑quarreller, ↑reformer, ↑reformist, ↑crusader, ↑social reformer, ↑meliorist
Useful english dictionary. 2012.