Synonyms|637Antonyms|22|Broader|22Narrower|18Related|153

45 entries under sick topic. ×

5
kook(noun, person, slang, crazy, mad)
4
nut(noun, slang, crazy, mad)
4
loon(noun, slang, mad, fanatic)
4
nutcase(noun, slang, fanatic, loony)
4
psycho(noun, slang, mad, fanatic)
4
screwball(noun, slang, crazy, fanatic)
3
loony(noun, slang, mad person)
2
cuckoo(noun, slang, mad, mad person)
2
jerk(noun, slang, mad person)
2
nutter(noun, 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
goof(noun, slang, mad person)
1
jerk-off(noun, slang, mad person)
1
knee-jerk(noun, slang, mad person)
1
loom(noun, slang, mad person)
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ChicagoSmart Define. 2015. "flake thesaurus" https://smartdefine.org/flake/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, flake thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/flake/thesaurus/synonyms>.
MLASmart Define. "flake thesaurus" 13 May 2015. Web. 20 September 2026. <https://smartdefine.org/flake/thesaurus/synonyms>