14 entries under loony topic. ×

14
nut(noun, slang, sick, fanatic, patient)
13
screwball(noun, slang, sick, fanatic)
9
crackpot(noun, character, nut, fanatic, freak)
6
fruitcake(noun, character, freak, oddball)
6
madman(noun, character, lunatic, dissentient)
4
flake(noun, slang, sick, fanatic)
4
oddball(noun, character, freak, patient, cuckoo)
3
cuckoo(noun, slang, sick, patient)
3
madwoman(noun, character, dissentient, lamebrain)
2
bedlamite(character, nut, fanatic, lamebrain)
2
freak(noun, nut, fanatic, oddball)
2
madperson(noun, character, nut, fanatic)
1
dement(character, patient, cuckoo, dissentient)
1
raver(character, patient, cuckoo, dissentient)
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APASmart Define. (2015). nutcase thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nutcase/thesaurus/synonyms
ChicagoSmart Define. 2015. "nutcase thesaurus" https://smartdefine.org/nutcase/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, nutcase thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nutcase/thesaurus/synonyms>.
MLASmart Define. "nutcase thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/nutcase/thesaurus/synonyms>