lunacy

noun

ˈlü-nə-sē How to pronounce lunacy (audio)
Definition of lunacynext
1
as in insanity
a foolish act or idea you want to sneak into the building after the alarm is set—what lunacy!

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2
as in dementia
a serious mental disorder that prevents one from living a safe and normal life the judge ruled that the lunacy of the accused made him incompetent to stand trial

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3
as in madness
lack of good sense or judgment was it desperation or lunacy that caused him to quit his job and move to California without any plan for what to do when he got there?

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of lunacy Pure lunacy — and now stressing out students with crashes of a computer system. — Voice Of The People, New York Daily News, 2 May 2026 Yang is genius not just for playing the easy pickins of George Santos but high-concept lunacy like a gay oompaloompa and the iceberg that sunk the Titanic. — Steven Zeitch, HollywoodReporter, 20 Aug. 2025 Mamdani’s $22 billion housing lunacy proposal will socialize the skyline. — FOXNews.com, 8 June 2026 The Emmys’ producers passing up on even the slightest possibility of a Werner Herzog acceptance speech is sheer lunacy. — Joe Reid, Vulture, 20 June 2026 See All Example Sentences for lunacy
Recent Examples of Synonyms for lunacy
  1. insanity
  2. dementia
  3. madness
  4. idiocy
  5. hysteria
  6. absurdity
  7. simplicity
  8. craziness
Noun
  • Iraq, Canada, United Kingdom, Luxembourg, Qatar, Saudi Arabia After accidentally cursing President Saddam Hussein on stage, theater actor Salem convinces a military court of his insanity to escape a death sentence.
    — Leo Barraclough, Variety, 6 July 2026
  • San Francisco trailed 6-1 at the time of Webb’s departure, and given Coors Field’s penchant for insanity, a comeback wasn’t out of the question.
    — Justice delos Santos, Mercury News, 4 July 2026
Definition of insanity
Noun
  • The lifetime cost of dementia care alone now exceeds $400,000 per person.
    — John Samuels, Forbes.com, 30 June 2026
  • However, the study was observational and does not prove that caffeine directly prevents dementia.
    — Lauren Pastrana, CBS News, 29 June 2026
Definition of dementia
Noun
  • In the midst of the final stretch of World Cup madness, here are eight shows happening in Kansas City in July.
    — Rashad Alexander, Kansas City Star, 1 July 2026
  • Either Cody or Gunther wins because Sami gets screwed; Zayn will then further descend into madness and attack someone after the bell.
    — Darren Cooper, Forbes.com, 26 June 2026
Definition of madness
Noun
  • That’s the level of idiocy in the Los Angeles city government.
    — Susan Shelley, Daily News, 13 May 2026
  • The idiocy of these people knows no bounds.
    — Austin Perry OutKick, FOXNews.com, 25 Apr. 2026
Definition of idiocy
Noun
  • And the hysteria over the centers seemed to be not as much about freedom, or competing educational philosophies, or politics at all, as about an ever-shrinking pot of money.
    — Ann Manov, Harpers Magazine, 30 June 2026
  • From causing supernatural events to creating hysteria, our orbiting nightlight has always had legends and folktales written about it.
    — Taylor Grothe, Parents, 28 June 2026
Definition of hysteria
Noun
  • Swift will either ignore the noise as usual, or smile at the absurdity as a secure, proud childless cat lady.
    — Bryan West, USA Today, 4 July 2026
  • Fireworks, flags and BBQs are Fourth of July staples, but America’s 250th birthday brings an extra helping of absurdity to Coney Island.
    — Geoff Clark OutKick, FOXNews.com, 3 July 2026
Definition of absurdity
Noun
  • Mixing knits with leather creates texture and contrast in the outfit, while the height and simplicity of these solid-color boots helps ground the overall look.
    — Abby Morgan Lebet, Glamour, 6 July 2026
  • Professionals must actively map where their risk truly lies, assessing counterparty exposure, income correlation, and cost repricing, rather than mistaking simplicity for safety.
    — Henrik Totterman, Forbes.com, 5 July 2026
Definition of simplicity
Noun
  • The forecast for Thursday calls for craziness.
    — Jacob Feldman, Sportico.com, 18 June 2026
  • Meanwhile, the Spurs had to rush off the court to avoid getting caught up in all the craziness.
    — Joe Vardon, New York Times, 11 June 2026
Definition of craziness

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Cite this Entry

“Lunacy.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lunacy. Accessed 8 Jul. 2026.

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Nglish: Translation of lunacy for Spanish Speakers

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