Synonyms and related words :
alienated, breakaway, contumacious, disaffected, disloyal, dissident, extreme, extremistic, factious, faithless, inflammatory, insurgent, insurrectionary, insurrectionist, lawless, mutineering, mutinous, perfidious, rabble-rousing, rebel, rebellious, refractory, revolutional, revolutionary, riotous, seditionary, subversive, traitorous, treacherous, treasonable, turbulent, turncoat, unfaithful, violent