| vehement(adjective, keen, passionate, enthusiastic, fervent) | |
| wild-eyed(adjective, keen, passionate, enthusiastic, ardent) | |
| willful(adjective, fervent, zealous, dedicated, obsessive) | |
| dement(noun, crazy, loony, dingbat, ultraist) | |
| hotheaded | |
| accepter | |
| accessory(adjective, sympathetic, interested, prejudiced, opinionated) | |
| adhering(adjective, sympathetic, interested, prejudiced, opinionated) | |
| advocate(noun, supporter, devotee) | |
| afire(adjective, keen, passionate, enthusiastic, ardent) | |
| agitator(noun, radical, rebel, progressive, revolutionary) | |
| aliene | |
| anarchist | |
| antsy(adjective, keen, passionate, enthusiastic, ardent) | |
| ass | |
| backer(noun, supporter, devotee) | |
| biased(adjective, sympathetic, fervent, zealous, dedicated) | |
| bitter-ender | |
| blind(adjective, sympathetic, interested, prejudiced, opinionated) | |
| borderline case |
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| APA | Smart Define. (2015). fanatic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fanatic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "fanatic thesaurus" https://smartdefine.org/fanatic/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, fanatic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fanatic/thesaurus/synonyms>. |
| MLA | Smart Define. "fanatic thesaurus" 24 December 2015. Web. 25 September 2026. <https://smartdefine.org/fanatic/thesaurus/synonyms> |