Bolshevik, Fabian, Jacobin, Wobbly, agitator, anarchist, anarchistic, anarcho-syndicalist, bigoted, brawler, extravagant, extreme, extreme left-winger, extremistic, fanatic, frondeur, haggard, inordinate, insubordinate, insurgent, insurrectionary, insurrectionist, insurrecto, irrational, left-wing extremist, lunatic fringe, malcontent, maverick, meliorist, mild radical, mildly radical, mutineer, nihilist, nihilistic, nonconformist, overenthusiastic, overreligious, overzealous, parlor Bolshevik, parlor pink, perfervid, pink, pinko, progressionist, progressist, progressive, progressivist, rabid, radical, rebel, red, reformer, reformist, revisionist, revolter, revolutional, revolutionary, revolutionist, rioter, sans-culotte, subversive, syndicalist, traitor, ultra, ultraconservative, ultraist, ultraistic, ultrazealous, unreasonable, utopian, utopist, wild-eyed, wild-looking, yippie, zealotic