Synonyms|350Antonyms|62|Broader|7Narrower|24Related|177
2
eccentricity
2
frivolity(foolishness, silliness, foolhardiness)
2
fury(noun, passion, excitement, anger, rage)
2
giddiness(fun, absurdity, foolishness, mischief, silliness)
2
impracticality(nonsense, absurdity, stupidity, foolishness, madness)
2
imprudence(apathy, nonsense, absurdity, stupidity, foolishness)
2
incoherence
2
kookiness(noun, insanity)
2
loss of mind(expression, idiom, depression, insanity, schizophrenia)
2
mental disease(expression, depression, insanity, schizophrenia)
2
mental sickness(expression, depression, insanity, schizophrenia)
2
nonsensicalness
2
obtuseness(noun, apathy, nonsense, absurdity)
2
rabies(noun, insanity)
2
schizophrenia(noun, depression, insanity)
2
sick mind(expression, depression, insanity, schizophrenia)
2
stolidity(noun, apathy, nonsense, absurdity, ignorance)
2
thoughtlessness(silliness, irrationality, idiocy)
2
triviality(nonsense, absurdity, stupidity, foolishness, madness)
2
unbalanced mind(expression, depression, insanity, schizophrenia)
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ChicagoSmart Define. 2015. "lunacy thesaurus" https://smartdefine.org/lunacy/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, lunacy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/lunacy/thesaurus/synonyms>.
MLASmart Define. "lunacy thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/lunacy/thesaurus/synonyms>