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
People have been hurt so badly by radical left lunatics that worked for the Biden administration and Sleepy Joe. — NBC news, 7 June 2026 To get a sentence like that in a communist, radically left-wing city of liberal lunatics is truly amazing. — Voice Of The People, New York Daily News, 29 Apr. 2026 See All Example Sentences for lunatic
Recent Examples of Synonyms for lunatic
  1. insane
  2. fool
  3. stupid
  4. maniac
  5. mad
  6. goose
  7. foolish
  8. moron
Adjective
  • Dominguez, who was declared legally insane the day after the verdicts, will be sent to a state mental hospital.
    — Sharon Bernstein, Sacbee.com, 27 July 2026
  • These were two insane asks — a 7-foot giant and an 8-year-old kid who has to be your second lead.
    — James Hibberd, HollywoodReporter, 23 July 2026
Definition of insane
Noun
  • There was simply no reason to try to match that; and Bogaerts would have been a fool not to accept it.
    — Dan Freedman, Forbes.com, 1 Aug. 2026
  • And coming back with a movie that has anywhere near the impact of No Way Home’s untoppable uniting of Tobey Maguire, Andrew Garfield and Holland would seem a fool’s errand.
    — Pete Hammond, Deadline, 28 July 2026
Definition of fool
Adjective
  • Parametric modeling, especially when weighted down with decades of AutoCAD’s stupid UI/UX choices, was even harder than programming.
    — Lee Hutchinson, ArsTechnica, 23 July 2026
  • The simplest explanation is that Vance believes his voters are stupid.
    — David A. Graham, The Atlantic, 21 July 2026
Definition of stupid
Noun
  • 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
  • The odd thing about this choice is that, although the DSA’s platform is indeed chock-full of maniacal proposals, on this particular idea, the maniacs have a point.
    — Jonathan Chait, The Atlantic, 22 July 2026
Definition of maniac
Adjective
  • Alec Hammond, my production designer, is just a mad scientist.
    — Matt Minton, Variety, 31 July 2026
  • Fortunately, Alec Hammond, the production designer, is a is a mad scientist.
    — Josh Weiss, Forbes.com, 31 July 2026
Definition of mad
Noun
  • They were provided by a speedy and adventurous black squirrel, who spent the better part of an inning on and around the playing field and at one point led an army of ground crew members on a wild goose — uh, squirrel — chase in right field.
    — Chuck Schilken, Los Angeles Times, 28 July 2026
  • The shows featured a continuous storyline surrounding her string of black pearls being lost and found, sending her on a goose chase that began with The Nanny and continued into Can’t Hurry Love, Murphy Brown and High Society.
    — Angela Andaloro, PEOPLE, 17 July 2026
Definition of goose
Adjective
  • Drawing definitive conclusions from pre-season is foolish — but Lacey has shown his close control, pace, and scored an excellent goal in the previous friendly against Rosenborg.
    — Cerys Jones, New York Times, 2 Aug. 2026
  • Johnson continued this week to push for his foolish and counterproductive desire to impose a $33-per-month tax on each Chicago job generated by the city’s largest private-sector employers.
    — The Editorial Board, Chicago Tribune, 10 July 2026
Definition of foolish
Noun
  • God help us all if some idiot, some moron, ever put you in charge.
    — Greg Evans, Deadline, 18 July 2026
  • Mantzoukas was willing to look like a maniac and a moron in equal measure.
    — Roxana Hadadi, Vulture, 17 June 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 4 Aug. 2026.

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