cuckoo 1 of 2

adjective

Definition of cuckoonext
as in foolish
showing or marked by a lack of good sense or judgment offered a completely cuckoo suggestion for using the defunct strip mall

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

cuckoo

2 of 2

noun

ˈkü-(ˌ)kü How to pronounce cuckoo (audio)
1
as in lunatic
a person who lacks good sense or judgment one cuckoo at the campground tried to boil soup in a plastic cup

Synonyms & Similar Words

Antonyms & Near Antonyms
2
as in goose
a silly flighty person didn't want to be among those cuckoos who race around the mall the day before Christmas

Synonyms & Similar Words

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 cuckoo
Adjective
In the Disney film, Geppetto is a maker of toys and cuckoo clocks living in a vaguely European half-timber house. — Perri Klass, Smithsonian Magazine, 24 May 2022 In the midst of such cuckoo-ness, my son, Isaac, and daughter-in-law, Lennon, had the courage to bring a child into this world. — New York Times, 15 Mar. 2022
Noun
There in Bauhus’s office, a cuckoo springs out of the little house on the wall—that sleek, modern clock, missing the detail of tradition but still gesturing at something. — Kendra Atleework, Longreads, 12 Mar. 2026 Under the current Gateway plan, those repairs don’t happen until 2040, which is cuckoo, especially if imminent failure is feared. — New York Daily News Editorial Board, New York Daily News, 16 Feb. 2026 See All Example Sentences for cuckoo
Recent Examples of Synonyms for cuckoo
  1. foolish
  2. lunatic
  3. goose
  4. stupid
  5. fool
  6. silly
  7. mad
  8. 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
  • The show will serve as a platform for countless lunatics within the InfoWars universe and a platform for larger announcements about the company’s fictional exploits.
    — Christian Zilko, IndieWire, 8 Oct. 2026
  • Rabin was killed [in 1995], that was a last straw —seeing an extremist right-wing lunatic in Israel kill Rabin and kill the dreams of peace.
    — Shirley Halperin, Rolling Stone, 17 Sep. 2026
Definition of lunatic
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
  • 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
  • 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
Noun
  • The glamorous Emmy winner known for Loewe red-carpet looks and starring on prestige dramedy The Bear is returning to full-bore silly in order to play America’s favorite beagle.
    — Jason P. Frank, Vulture, 6 Aug. 2026
  • It was shot in portrait because it was shot in Instagram by and for a woman who was losing her mind in quarantine and had fully let the sillies take the wheel.
    — Ego Nwodim, TIME, 12 Feb. 2025
Definition of silly
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
  • 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

Browse Nearby Words

cubs
cuckoo
cuckoo clock
See all Nearby Words

Podcast

Theme music by Joshua Stamper ©2006 New Jerusalem Music/ASCAP

Cite this Entry

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

Copy Citation

More from Merriam-Webster on cuckoo

Britannica.com: Encyclopedia article about cuckoo

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Last Updated: - Updated example sentences

Popular in Grammar & Usage

See More

Do You Need a New Language Peeve?

The Exceptions of '-s' and '-es' Plurals

Merriam-Webster’s Great Big List of Words You Love to Hate

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

The Words of the Week - Oct. 9

Even More Bird Names that Sound Like Insults (and Sometimes Are)
See More

Popular

See More

Do You Need a New Language Peeve?

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
a cup of tea and a golf ball on tee side by side
Quiz: Sounds Like... Choose the word that sounds like it fits the clue...
See All