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

44 entries under sick topic. ×

20
loony(noun, adjective, informal, wild, silly)
15
nuts(adjective, slang, silly, crazy, mad)
10
screwball(noun, adjective, slang, silly, crazy)
8
nut(noun, slang, mad, wise)
7
goof(noun, slang, mad person)
7
kook(noun, slang, mad, wise)
7
mental(noun, adjective, slang, silly, mad)
6
loon(noun, slang, informal, mad)
6
not all there(noun, expression, adjective, idiom, slang)
4
schizo(noun, adjective, slang, silly, mad)
3
nutcase(noun, slang, patient, loony)
2
flake(noun, slang, mad, mad person)
2
luny(noun, adjective, slang, mad person)
1
basket case(noun, slang, mad person)
1
coo-coo(noun, slang, mad person)
1
crack-brain(noun, slang, mad person)
1
crack-skull(noun, slang, mad person)
1
fruit-cake(noun, slang, mad person)
1
goo-goo(noun, slang, mad person)
1
jerk(noun, slang, mad person)
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APASmart Define. (2016). cuckoo thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/cuckoo/thesaurus/synonyms
ChicagoSmart Define. 2016. "cuckoo thesaurus" https://smartdefine.org/cuckoo/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, cuckoo thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/cuckoo/thesaurus/synonyms>.
MLASmart Define. "cuckoo thesaurus" 30 March 2016. Web. 24 September 2026. <https://smartdefine.org/cuckoo/thesaurus/synonyms>