Synonyms|165Antonyms|21|Broader|0Narrower|0Related|617

35 entries under crazy topic. ×

3
mentally ill(expression, adjective, sick, insane)
2
cuckoo(adjective, wrong, slang, wild)
2
irrational(adjective, wrong, wild, confused)
2
mad as a hatter(adjective, idiom, sick, insane)
2
sick in the head(expression, adjective, idiom, wrong)
2
stark raving mad(expression, adjective, idiom, sick)
1
bizarre(adjective, wrong, wild, mad)
1
crazy as a loon(expression, adjective, idiom, sick)
1
derailed(adjective, wrong, wild, mad)
1
fatuous(adjective, wrong, wild, mad)
1
frenzied(adjective, wrong, wild, mad)
1
idiotic(adjective, wrong, wild, mad)
1
impractical(adjective, wrong, wild, mad)
1
irresponsible(adjective, wrong, wild, mad)
1
nutty as a fruitcake(expression, adjective, idiom, sick)
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ChicagoSmart Define. 2015. "brainsick thesaurus" https://smartdefine.org/brainsick/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, brainsick thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/brainsick/thesaurus/synonyms>.
MLASmart Define. "brainsick thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/brainsick/thesaurus/synonyms>