Synonyms of reformer

2 Syllables
rebel, leftist, rioter, ultraist
3 Syllables
pacifist, inciter, disrupter, insurgent, fanatic, disrupters, firebrand, mutineer, militant, leftwinger, extremist, revolter, freethinker, left-winger, objector, fomenter, nihilist, anarchist
4 Syllables
agitators, avant-garde, progressive, renegade, secessionist, iconoclast, nonconformist, agitator, subversive
5 Syllables
insurrectionist
6 Syllables
revolutionary