- Definitions|2
- Thesaurus|751
- Abbreviations|0
| inordinate | |
| insane(adjective, enthusiastic, ill, sick, fervent) | |
| insubordinate | |
| insurrecto | |
| intemperate(adjective, enthusiastic, ill, sick, fervent) | |
| intolerant(noun, adjective, enthusiastic, ill, sick) | |
| intransigent | |
| keen(adjective, enthusiastic, ill, sick, fervent) | |
| left-wing extremist | |
| left-winger(noun, rebel, fanatic, progressive, revolutionary) | |
| leftist(noun, adjective, thorough, rebel, uncompromising) | |
| lunatic fringe | |
| mad(adjective, enthusiastic, ill, sick, fervent) | |
| mad-dog(adjective, enthusiastic, ill, sick, fervent) | |
| malcontent | |
| mild radical | |
| mildly radical | |
| monomaniac(noun, radical, fanatic, intolerant, freak) | |
| narrow-minded(adjective, enthusiastic, ill, sick, fervent) | |
| new |
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| APA | Smart Define. (2015). extremist thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/extremist/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "extremist thesaurus" https://smartdefine.org/extremist/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, extremist thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/extremist/thesaurus/synonyms>. |
| MLA | Smart Define. "extremist thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/extremist/thesaurus/synonyms> |