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
As a result, the party increasingly fell under the sway of the lunatic left. — Chris Roemer, Baltimore Sun, 10 June 2026 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
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
  • Cohen and Harwood grew up in Maryland, studying Top 40 hits and FL Studio tutorials; in some ways, this fun, formalist record—impeccable songcraft, insane sprezzatura—plays like a tribute to those days.
    — Samuel Hyland, Pitchfork, 28 Oct. 2026
  • Many have told me that Veronica Beard has copied more small brands, this is insane.
    — Lisa Lockwood, Footwear News, 19 Oct. 2026
Definition of insane
Noun
  • But Thomas and Erika are no fools, coolly telling off smiling Hitler sympathizers during a tony reception.
    — Los Angeles Times, Los Angeles Times, 23 Oct. 2026
  • The Atlanta Dream might now be the hottest ticket in town and State Farm Arena would be fools not to host them in Game 6.
    — Don Riddell, CNN Money, 22 Oct. 2026
Definition of fool
Adjective
  • Sick and suffering and young and stupid do not factor into the construction of a case against you.
    — Ivy Wolk, Vulture, 28 Oct. 2026
  • Just give us the stupid game on the stupid channel and leave us alone.
    — Zach Dean OutKick, FOXNews.com, 22 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
  • The descent into foolish and self-destructive groupthink provides the drama.
    — Doreen St. Félix, New Yorker, 24 Oct. 2026
  • But Ohtani also struck out three times Thursday — made to look foolish in a much-too-familiar way.
    — Mirjam Swanson, Los Angeles Times, 16 Oct. 2026
Definition of foolish
Noun
  • This league has been out to cook its golden goose from Day 1.
    — Patricia Babcock McGraw OutKick, FOXNews.com, 27 Oct. 2026
  • What's candy for the goose may be a savory munchy for the gander.
    — Jeffrey Steingarten, Vogue, 25 Oct. 2026
Definition of goose
Adjective
  • These three are just the latest in a mad rush for capital that has been putting a strain on the AI trade.
    — Zev Fima, CNBC, 26 Oct. 2026
  • Both about power-mad blondes getting involved with the shadier side of the medical industrial complex, but Matt Hagen’s nanites worked, dammit!
    — Bethy Squires, Vulture, 25 Oct. 2026
Definition of mad
Noun
  • The fact that there is someone out there who could actually get all the real unsuspecting morons who participated in this movie to sign off on it afterwards is simply astonishing considering what they are asked to do in it.
    — Pete Hammond, Deadline, 22 Oct. 2026
  • 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
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 30 Oct. 2026.

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