as in mad
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
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Antonyms & Near Antonyms
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
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Recent Examples of cuckoo
Matthew Martin,
semafor.com,
6 Oct. 2025
New York Daily News Editorial Board,
New York Daily News,
16 Feb. 2026
Canada geese are protected, as well as most other geese, swans, ducks, cranes, cuckoos, hummingbirds, doves and flamingos.
—
Kyle Werner,
Des Moines Register,
27 Jan. 2026
See All Example Sentences for cuckoo
Adjective
Different bird species understand anti-cuckoo warning calls Birds of different species can understand each other’s alarm calls warning of cuckoos.
—
Matthew Martin,
semafor.com,
6 Oct. 2025
Noun
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
Canada geese are protected, as well as most other geese, swans, ducks, cranes, cuckoos, hummingbirds, doves and flamingos.
—
Kyle Werner,
Des Moines Register,
27 Jan. 2026
See All Example Sentences for cuckoo
Recent Examples of Synonyms for cuckoo
Adjective
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Getting mad about missing out on signing Anfernee Simons won’t change that.
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When World Cup season descends upon soccer-mad Brazil, green and yellow banners decorate restaurants, bars and apartment buildings, streets are painted with flags and soccer balls, and discussions of the beloved national team's games are ubiquitous.
Noun
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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.
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The lunatics are running the asylum.
Noun
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The list goes on, though; roast goose and crispy fried pigeon star on the menu at The Legacy House, and stylish couples swish into DarkSide for live jazz even on most evenings.
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Organic cotton and goose down in three firm varieties mean there’s a suitable fill for stomach, back, and side sleepers alike.
Adjective
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Further, Plato’s disdain for Gorgias, Antisthenes’ first teacher, and sophistry in general is clear; in the Platonic dialogue Gorgias, the titular character is made out to be rather foolish.
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One is villianized and one is made to look foolish.
Noun
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Being a gent or a supplicant wasn’t the same as being a fool, though.
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Don’t let the simple style fool you, though, because the ultra-soft foam insoles provide solid arch support.
Noun
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But no, sillies: Bradley is white, famous and pretty — no jail time for her!
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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.
Adjective
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And no, that was NOT OutKick or FOX who wrote that stupid headline.
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The thing about House of the Dragon is that everything really is quite stupid.
Noun
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Mantzoukas was willing to look like a maniac and a moron in equal measure.
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The Martin Lawrence vehicle Martin, which ran for five glorious seasons, offered a terrific platform for Lawrence to run around like a maniac as an energetic radio DJ.
Cite this Entry
“Cuckoo.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cuckoo. Accessed 5 Jul. 2026.
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