lu·na·cy noun \ˈlü-nə-sē\
: extreme foolishness
: something that is very foolish
: extreme mental illness
a : insanity
b : intermittent insanity once believed to be related to phases of the moon
: wild foolishness : extravagant folly
Examples of LUNACY
- Quitting her job was lunacy.
- His idea was considered total lunacy.
Origin of LUNACY
First Known Use: 1541
Related to LUNACY
- absurdity, asininity, bêtise, fatuity, foolery, foppery, idiocy, imbecility, inanity, insanity, folly, stupidity
- mind, saneness, sanity
lu·na·cy noun \ˈlü-nə-sē\ (Medical Dictionary)
: insanity; also : intermittent insanity once believed to be related to phases of the moon
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