Progressionist1. (n.) One who holds to a belief in the progression of society toward perfection.
2. (n.) One who maintains the doctrine of progression in organic forms; -- opposed to uniformitarian.
Thesaurus Entries
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