plural lunacies
1
dated
a
b
: intermittent insanity once believed to be related to phases of the moon
2
: wild foolishness : extravagant folly
3
: a foolish act
Synonyms
Examples of lunacy in a Sentence
Quitting her job was lunacy.
His idea was considered total lunacy.
Recent Examples on the Web
Rudolph hopes that the time is finally right for audiences to appreciate the film’s lunacy and vision of an America whose values have gone completely out of whack.
—Jim Hemphill, IndieWire, 29 Oct. 2024
Like Spann, my perception is that the volume of lunacy and hostility was greater than usual.
—Marshall Shepherd, Forbes, 12 Oct. 2024
But legitimate criticism has often been lost in spiteful lunacy.
—Jay Nordlinger, National Review, 10 Oct. 2024
With all this lunacy, your show can also hit tender moments so well — like when Charles and Doreen make amends.
—Jim Halterman, Variety, 8 Oct. 2024
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Word History
First Known Use
1541, in the meaning defined at sense 1a
Dictionary Entries Near lunacy
Cite this Entry
“Lunacy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lunacy. Accessed 11 Nov. 2024.
Kids Definition
Medical Definition
lunacy
noun
lu·na·cy
ˈlü-nə-sē
plural lunacies
dated
: mental illness
also
: intermittent mental illness once believed to be related to phases of the moon
More from Merriam-Webster on lunacy
Nglish: Translation of lunacy for Spanish Speakers
Britannica English: Translation of lunacy for Arabic Speakers
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