lunatic 1 of 2

adjective

Definition of lunaticnext
informal
as in foolish
showing or marked by a lack of good sense or judgment such lunatic clowning during a solemn ceremony is completely inappropriate

Synonyms & Similar Words

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Antonyms & Near Antonyms

lunatic

2 of 2

noun

informal
as in fool
a person who lacks good sense or judgment No, you can't ski off the roof, you lunatic!

Synonyms & Similar Words

Antonyms & Near Antonyms

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 lunatic
Adjective
Police found Mazariegos, who fit the description of the lunatic hiding in the bushes, nearby, according to the probable cause affidavit. — Sean Joseph Outkick, FOXNews.com, 13 May 2026 Richard Attenborough once mischievously locked his brother inside a padded cell in a building on campus that was once a Victorian lunatic asylum, according to the university. — Amarachi Orie, CNN Money, 8 May 2026
Noun
As a Spurs fan, I was particularly invested in Campbell in an England shirt and recall charging around the living room like a lunatic before the reality that it had been chalked off hit home. — The Athletic Uk Staff, New York Times, 18 June 2026 The lunatics are running the asylum. — Eugenie Brinkema, ARTnews.com, 14 June 2026 See All Example Sentences for lunatic
Recent Examples of Synonyms for lunatic
  1. insane
  2. fool
  3. stupid
  4. maniac
  5. foolish
  6. goose
  7. mad
  8. moron
Adjective
  • Derek wants to hear Julia audibly breathing next week, which is both a hilarious and insane request.
    — Maggie Fremont, Vulture, 7 Oct. 2026
  • Those questions triggered some insane accusations from Aces fans regarding the Fever fan and their fanbase.
    — Jon Root OutKick, FOXNews.com, 2 Oct. 2026
Definition of insane
Noun
  • The Trasks encounter a wide swath of citizens, haggling with sneaky cheats, exploiting innocent fools, and befriending big-hearted neighbors.
    — Ben Travers, IndieWire, 1 Oct. 2026
  • To protest in the street, to be arrested for attacking a police officer or vandalizing private property, or making a fool of yourself in any of a hundred different ways is valuable currency to anyone seeking status within an activist organization.
    — Chris Roemer, Baltimore Sun, 1 Oct. 2026
Definition of fool
Adjective
  • Trump’s super intelligence rebrand can ultimately be read in a couple ways, though arguably neither are particularly nuanced or incisive — just further indicative of the daily deluge of stupid.
    — Jon Blistein, Rolling Stone, 7 Oct. 2026
  • Once upon a time, the idea that the world was growing stupider was mostly confined to the realm of dyspeptic reactionary polemic.
    — James Marriott, Washington Post, 7 Oct. 2026
Definition of stupid
Noun
  • David extended a hand toward me (imaginary attacks by slow, handshake-wielding maniacs are a martial arts class staple).
    — Johanna Stein, Los Angeles Times, 11 Sep. 2026
  • Unbeknownst to the visitors, there’s an unhappy fifth party already in the house… and more than one homicidal maniac even within that small populace.
    — Dennis Harvey, Variety, 28 July 2026
Definition of maniac
Adjective
  • Soaking the suburbs over parking is reminiscent of other foolish, revenue-grabbing ideas, such as a congestion tax aimed at outsiders as a way to gin up money to cover Chicago’s ever-present budget black hole.
    — The Editorial Board, Chicago Tribune, 1 Oct. 2026
  • With Oracle having lost more than $20 billion in stock-market value today, this appears to be penny-wise and pound foolish.
    — Liz Hoffman, semafor.com, 24 Sep. 2026
Definition of foolish
Noun
  • Its winding path — and its goose motif — serve as the inspiration for Fortunae, Ginori 1735’s latest collection of collectible porcelain and home decor.
    — Sofia Celeste, Footwear News, 7 Oct. 2026
  • In terms of the fake-out, yeah, just a tiny little goose for the last moment.
    — Michael Schneider, Variety, 7 Oct. 2026
Definition of goose
Adjective
  • When Blue Cross Blue Shield recently published research suggesting that hospitals use artificial intelligence tools to extract more money from insurers without providing additional care, people were mad.
    — Leah Pierson, STAT, 6 Oct. 2026
  • Carmella is also still mad at Vicki for saying that Danny is raising her kids, and Heather is angry after learning that Vicki called her fake in Palm Springs.
    — Louis Peitzman, Vulture, 2 Oct. 2026
Definition of mad
Noun
  • The unlikely source is Enervate’s company stooge corporate strategist, Ken Davies (Tim Key), a moron by any measure.
    — Ben Travers, IndieWire, 9 Sep. 2026
  • God help us all if some idiot, some moron, ever put you in charge.
    — Greg Evans, Deadline, 18 July 2026
Definition of moron

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Cite this Entry

“Lunatic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lunatic. Accessed 9 Oct. 2026.

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