Synonyms and related words :
aggressive, alienated, argumentative, at loggerheads, at odds, bellicose, belligerent, bickering, breakaway, combative, conflicting, contending, contentious, contumacious, disaffected, discordant, disputatious, divisive, eristic, estranged, extreme, extremistic, factional, fighting, insurgent, insurrectionary, irascible, irritable, litigious, mutineering, mutinous, partisan, polarizing, polemic, pugnacious, quarrelsome, rebel, rebellious, refractory, revolutional, revolutionary, riotous, seditionary, seditious, shrewish, subversive, traitorous, treasonable, turbulent, warring, wrangling