25 entries under fanatic topic. ×

12
crazy(noun, informal, wise, crackpot)
8
nut(noun, slang, informal, mad, sick)
5
kook(noun, slang, mad, sick, wise)
5
nutcase(noun, slang, sick, nut)
4
flake(noun, slang, mad, sick)
3
dingbat(noun, slang, wise, ultraist)
3
lamebrain(noun, simple, fool, silly, mad)
2
bedlamite(nut, patient, lunatic, enthusiast)
2
dement(patient, cuckoo, dingbat, ultraist)
2
ding-a-ling(noun, slang, wise, dingbat)
2
wacko(dingbat, ultraist)
1
deranged person(noun, expression, crackpot, dingbat)
1
fruitcake(noun, mad, nut, lunatic)
1
nut case(noun, expression, crackpot, dingbat)
0
activist(dingbat, ultraist)
0
harebrain(dingbat, ultraist)
0
innovativeness(dingbat, ultraist)
0
madwoman(dingbat, ultraist)
0
modernity(dingbat, ultraist)
0
monomaniac(dingbat, ultraist)
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APASmart Define. (2016). loon thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/loon/thesaurus/synonyms
ChicagoSmart Define. 2016. "loon thesaurus" https://smartdefine.org/loon/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, loon thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/loon/thesaurus/synonyms>.
MLASmart Define. "loon thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/loon/thesaurus/synonyms>