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

55 entries under slang topic. ×

16
batty(adjective, wild, silly, foolish)
15
nuts(adjective, silly, crazy, mad)
13
nutty(adjective, silly, stupid, crazy)
12
screwy(adjective, silly, stupid, crazy)
12
wacky(adjective, silly, foolish, crazy)
10
screwball(noun, adjective, silly, crazy)
9
loco(adjective, insane, sane)
8
bananas(adjective, sane)
8
fruity(adjective, silly, foolish, mad)
8
nut(noun, mad, sick, wise)
7
goof(noun, sick, mad person)
7
kook(noun, mad, sick, wise)
7
mental(noun, adjective, silly, mad)
6
loon(noun, informal, mad, sick)
6
not all there(noun, expression, adjective, idiom)
4
buggy(adjective, sane)
4
schizo(noun, adjective, silly, mad)
3
ding-a-ling(noun, wise)
3
nutcase(noun, sick, patient, loony)
2
dingbat(noun, wise)
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APASmart Define. (2016). cuckoo thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/cuckoo/thesaurus/synonyms
ChicagoSmart Define. 2016. "cuckoo thesaurus" https://smartdefine.org/cuckoo/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, cuckoo thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/cuckoo/thesaurus/synonyms>.
MLASmart Define. "cuckoo thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/cuckoo/thesaurus/synonyms>