18
zealous(adjective, strong, moving, severe, keen)
18
rabid(adjective, feeling, concern, severe, keen)
16
enthusiastic(adjective, moving, keen, intense, energetic)
16
fervent(adjective, strong, moving, keen, warm)
10
mad(adjective, love, passionate, enthusiastic, ill)
10
passionate(adjective, strong, moving, keen, warm)
9
bigoted(adjective, enthusiastic, ill, sick, hateful)
9
extreme(adjective, strong, concern, keen, passionate)
9
fanatic(adjective, concern, keen, passionate, enthusiastic)
9
ardent(adjective, strong, moving, keen, warm)
9
avid(adjective, keen, warm, passionate, enthusiastic)
9
burning(adjective, strong, keen, informal, passionate)
9
frenzied(adjective, passionate, excited, nervous, ill)
9
immoderate(adjective, severe, harsh, exceptional, unreasonable)
9
impassioned(adjective, strong, moving, keen, passionate)
9
infatuated(adjective, keen, passionate, crazy, fervent)
9
keen(adjective, strong, warm, passionate, enthusiastic)
9
overzealous(adjective, excitability)
9
radical(adjective, concern, severe, harsh, enthusiastic)
9
wild(adjective, enthusiastic, ill, sick, ardent)
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APASmart Define. (2015). fanatical thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/fanatical/thesaurus/synonyms
ChicagoSmart Define. 2015. "fanatical thesaurus" https://smartdefine.org/fanatical/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, fanatical thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/fanatical/thesaurus/synonyms>.
MLASmart Define. "fanatical thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/fanatical/thesaurus/synonyms>