15
demented(adjective, wrong, wild, strange, silly)
15
nonsensical(adjective, weak, simple, wrong, wild)
15
silly(adjective, light, weak, simple, wrong)
14
dippy(adjective, slang, crazy, mad)
14
fatuous(adjective, weak, simple, wild, silly)
14
loco(noun, adjective, slang, crazy, mad)
14
ridiculous(adjective, light, weak, simple, wrong)
13
eccentric(verb, adjective, unusual, wild, strange)
13
senseless(adjective, weak, simple, wrong, wild)
13
unbalanced(adjective, silly, foolish, crazy, mad)
12
cuckoo(adjective, slang, silly, stupid, crazy)
12
deranged(adjective, wild, enthusiastic, silly, foolish)
12
idiotic(adjective, weak, simple, wild, silly)
12
irrational(adjective, weak, simple, wild, silly)
12
stupid(adjective, weak, simple, wrong, wild)
12
touched(adjective, wild, silly, foolish, stupid)
11
bats
11
crackers(adjective, sane)
11
fruity(noun, adjective, slang, silly, foolish)
11
ludicrous(adjective, light, weak, simple, wild)
11 years ago|23k views|share |citing 
APASmart Define. (2015). nutty thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/nutty/thesaurus/synonyms
ChicagoSmart Define. 2015. "nutty thesaurus" https://smartdefine.org/nutty/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, nutty thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/nutty/thesaurus/synonyms>.
MLASmart Define. "nutty thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/nutty/thesaurus/synonyms>