Synonyms|686Antonyms|62|Broader|11Narrower|9Related|1.8k

55 entries under slang topic. ×

2
flake(noun, mad, sick, mad person)
2
luny(noun, adjective, sick, mad person)
2
weirdie(noun, wise)
2
weirdo(noun, wise)
1
basket case(noun, sick, mad person)
1
coo-coo(noun, sick, mad person)
1
crack-brain(noun, sick, mad person)
1
crack-skull(noun, sick, mad person)
1
fruit-cake(noun, sick, mad person)
1
goo-goo(noun, sick, mad person)
1
jerk(noun, sick, mad person)
1
jerk-off(noun, sick, mad person)
1
knee-jerk(noun, sick, mad person)
1
loom(noun, sick, mad person)
1
looneybin(noun, sick, mad person)
1
loony tune(noun, sick, mad person)
1
mishoogeh(noun, sick, mad person)
1
mishugah(noun, sick, mad person)
1
nougat(noun, sick, mad person)
1
nutjob(noun, sick, mad person)
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APASmart Define. (2016). cuckoo thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/cuckoo/thesaurus/synonyms
ChicagoSmart Define. 2016. "cuckoo thesaurus" https://smartdefine.org/cuckoo/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, cuckoo thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/cuckoo/thesaurus/synonyms>.
MLASmart Define. "cuckoo thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/cuckoo/thesaurus/synonyms>