Synonyms|716Antonyms|99|Broader|5Narrower|9Related|1k

44 entries under noun topic. ×

13
loony(adjective, slang, informal, foolish)
10
psycho(adjective, slang, silly, mad)
7
cuckoo(adjective, slang, silly, mad)
7
not all there(expression, adjective, idiom, slang)
5
schizo(adjective, slang, silly, mad)
3
screwball(adjective, slang, silly, mad)
2
luny(adjective, slang, sick, mad person)
1
basket case(slang, sick, mad person)
1
coo-coo(slang, sick, mad person)
1
crack-brain(slang, sick, mad person)
1
crack-skull(slang, sick, mad person)
1
flake(slang, sick, mad person)
1
fruit-cake(slang, sick, mad person)
1
goo-goo(slang, sick, mad person)
1
goof(slang, sick, mad person)
1
jerk(slang, sick, mad person)
1
jerk-off(slang, sick, mad person)
1
knee-jerk(slang, sick, mad person)
1
kook(slang, sick, mad person)
1
loom(slang, sick, mad person)
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APASmart Define. (2015). mental thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/mental/thesaurus/synonyms
ChicagoSmart Define. 2015. "mental thesaurus" https://smartdefine.org/mental/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, mental thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/mental/thesaurus/synonyms>.
MLASmart Define. "mental thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/mental/thesaurus/synonyms>