Synonyms of extremist

2 Syllables
smoking, die-hard, diehard, bigot, ultra, rabid, mad-dog, zealot, ultraist
3 Syllables
reformers, fanatic, overboard, maverick, leftwinger, left-winger, dogmatist, reformer, radical
4 Syllables
superpatriot, monomaniac, secessionist, corybantic, agitator
5 Syllables
fundamentalist, unreconstructed, revolutionist
6 Syllables
revolutionary