Synonyms and related words :
actionable, aggressive, argumental, argumentative, bellicose, belligerent, bickering, cat-and-dog, cat-and-doggish, causidical, combative, contentious, controversial, dialectic, disputatious, divisive, eristic, factional, factious, ill-humored, irascible, irritable, litigable, litigant, litigatory, logomachic, partisan, pilpulistic, polarizing, polemic, polemical, pro and con, pugnacious, quarrelsome, scrappy, shrewish, wrangling