Wiktionary
n. One who quarrels or is disposed to do so. An arguer or disputer.
WordNet
n. a disputant who quarrels [syn: quarreller]
Usage examples of "quarreler".
While the debate raged on, Jim Conyers opened the Studebaker's trunk and began to hoist boxes into it, without a word to the quarrelers.
And then Phil felt it too — the same invisible golden wave of amiability and understanding as had quieted the quarrelers at the Akeleys’, but now in a flood, a spring tide.
It grew louder as he walked toward it and then began to differentiate into individual voices: peddlars crying their wares, shoppers bargaining with shopkeepers, quarrelers shouting at each other, musicians competing for gratuities, beggars soliciting alms, blacksmiths, tinsmiths, coppersmiths hammering out their wares….