1
nihilist
1
nihilistic
1
nonconformist
1
nutty(adjective, enthusiastic, ill, sick, fervent)
1
objector(noun, rebel, fanatic, progressive, revolutionary)
1
obsessed(adjective, enthusiastic, ill, sick, fervent)
1
opinionated person(noun, expression, fanatic, intolerant, diehard)
1
original
1
overboard(adjective, enthusiastic, ill, sick, fervent)
1
overenthusiastic
1
overreligious
1
overzealous
1
parlor pink
1
partisan(noun, adjective, supporter, radical, fanatic)
1
perfervid
1
persecutor(noun, fanatic, intolerant, diehard, racist)
1
pink
1
poisoned(adjective, enthusiastic, ill, sick, fervent)
1
progressionist
1
progressist
11 years ago|7.4k views|share |citing 
APASmart Define. (2015). extremist thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/extremist/thesaurus/synonyms
ChicagoSmart Define. 2015. "extremist thesaurus" https://smartdefine.org/extremist/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, extremist thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/extremist/thesaurus/synonyms>.
MLASmart Define. "extremist thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/extremist/thesaurus/synonyms>