crazy

[ krey-zee ]

/ ˈkreɪ zi /

Save This Word!

See synonyms for: crazy / crazier / craziest / crazies on Thesaurus.com

adjective, cra·zi·er, cra·zi·est.

mentally deranged; demented; insane.

Informal. unpredictable, nonconforming, or odd: All I can say is she's the craziest person I know.

Informal. unusual; bizarre; singular: She always wears a crazy hat.

Informal. senseless; nonsensical; totally unsound: Surely you don’t plan to invest money in that crazy scheme!

Informal. extremely busy, hectic, chaotic, etc.: Yesterday was such a crazy day I hardly had time to eat.

Informal. intensely enthusiastic; passionately excited (usually followed by about or for): Like many kids, he was crazy for baseball and yearned to be a professional ballplayer.

Informal. very enamored or infatuated (usually followed by about or for): It's obvious he's just crazy about her.

Informal. intensely anxious or eager; impatient: I'm crazy to try those new skis.

Informal. very annoyed, frustrated, or bothered: It makes me crazy that some kids don't get a fair chance in life.

Informal. having an unusual, unexpected, or random quality, behavior, result, pattern, etc.: I'm back in Connecticut in a crazy twist of events, living in the same town where I grew up.

Slang. wonderful; excellent; perfect: That's crazy, man, crazy.

Archaic. likely to break or fall to pieces.

Archaic. weak, infirm, or sickly.

adverb

Informal. extremely; madly: December is a crazy busy month for us.That new clothing store is crazy popular with teenage girls.

noun, plural cra·zies.

a person who is mentally deranged or insane.

Informal. an unpredictable, nonconforming person; oddball: Next door is a house full of crazies who wear weird clothes and come in at all hours.

the crazies, Informal. a sense of extreme unease, nervousness, or panic; extreme jitters: The crew was starting to get the crazies from being cooped up belowdecks for so long.

OTHER WORDS FOR crazy

1 crazed, lunatic.

4 foolish; imprudent, foolhardy.

6 ardent, impassioned, passionate.

See synonyms for crazy on Thesaurus.com

OPPOSITES FOR crazy

1 sane.

6 cool, dispassionate.

12 stable.

13 strong; healthy.

See antonyms for crazy on Thesaurus.com

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

TAKE THE QUIZ TO FIND OUT

Idioms about crazy

like crazy, Informal.

with great enthusiasm or energy; to an extreme: We shopped like crazy and bought all our Christmas gifts in one afternoon.
with great speed or recklessness: He drives like crazy once he's out on the highway.

Origin of crazy

First recorded in 1570–80; craz(e) + -y¹

synonym study for crazy

1. See mad.

OTHER WORDS FROM crazy

cra·zi·ly, adverbcra·zi·ness, nounhalf-cra·zy, adjective

Words nearby crazy

crayon, craythur, craze, crazed, craziness, crazy, crazy bone, crazy eights, crazy golf, Crazy Horse, crazy house

How to use crazy in a sentence

“We can all be arguing like crazy people but when you attack one, you attack us all.”
Trina Braxton To David Adefeso: ‘When You Attack One, You Attack Us All’|Hope Wright|September 17, 2020|Essence.com
It was really crazy, and, at some point, you have to give yourself over to it.
“People want to believe”: How Love Fraud builds an absorbing docuseries around a romantic con man|Alissa Wilkinson|September 4, 2020|Vox
What I like about these episodes is the way they capture the stir-crazy energy of living in quarantine after all these months.
One Good Thing: Stephen Colbert is looser, funnier, and angrier in quarantine|Emily VanDerWerff|September 4, 2020|Vox
The butterflies were the craziest and most surreal experience.
How We Saved Our Neighborhood from a Wildfire|Dain Zaffke|September 2, 2020|Outside Online

So, I’ve never been one to really go crazy or do anything that wild, but I will say this.
Full Transcript: Tomi Lahren on ‘The Carlos Watson Show’|Daniel Malloy|August 31, 2020|Ozy
You were basically the guy to do every dictator or crazy character, from Gaddafi and Ahmadinejad to Bin Laden.
Coffee Talk with Fred Armisen: On ‘Portlandia,’ Meeting Obama, and Taylor Swift’s Greatness|Marlow Stern|January 7, 2015|DAILY BEAST
"That was crazy," Lynn Jenkins of Kansas muttered to another member as she walked to greet Boehner.
Democrats Accidentally Save Boehner From Republican Coup|Ben Jacobs, Jackie Kucinich|January 6, 2015|DAILY BEAST
He came to Phoenix once and we went up to see him, and they got so crazy that I ended up trying to hitchhike home.
The Story Behind Lee Marvin’s Liberty Valance Smile|Robert Ward|January 3, 2015|DAILY BEAST
Just who is crazy enough to go swimming when the pond across the street has a layer of ice across the top?
Diving Into 2015 With Polar Bear Plunge Extremists|James Joiner|January 1, 2015|DAILY BEAST
That goodness steered him clear of the Sex Boys, the Crazy Homicides, the Sons of Nuns, and the other gangs of East New York.
In The Shadow of Murdered Cops|Michael Daly|December 26, 2014|DAILY BEAST
All Weimar adores him, and people say that women still go perfectly crazy over him.
Music-Study in Germany|Amy Fay
The wheezy, crazy mechanism of the car went to bits in unexpected places.
The Joyous Adventures of Aristide Pujol|William J. Locke
Half-fed men would dig for diamonds, and men sheltered by a crazy roof erect the marble walls of palaces.
The Unsolved Riddle of Social Justice|Stephen Leacock
Sometimes he looks at me as if he were going to break out with that crazy idea to which he treated me the other day.
Confidence|Henry James
You would think the poor teacher would be driven crazy, but he seems as calm as a daisy in a June breeze.
Our Little Korean Cousin|H. Lee M. Pike

British Dictionary definitions for crazy

crazy

/ (ˈkreɪzɪ) /

adjective -zier or -ziest

informal insane

fantastic; strange; ridiculousa crazy dream

(postpositive; foll by about or over) informal extremely fond (of)

slang very good or excellent

noun plural crazies

informal a crazy person

Derived forms of crazy

crazily, adverbcraziness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with crazy

crazy

In addition to the idioms beginning with crazy

crazy about, be
crazy like a fox

also see:

drive someone crazy
like crazy

crazy

OTHER WORDS FOR crazy

OPPOSITES FOR crazy

Idioms about crazy

Origin of crazy

synonym study for crazy

OTHER WORDS FROM crazy

Words nearby crazy

Words related to crazy

How to use crazy in a sentence

British Dictionary definitions for crazy

Derived forms of crazy

Other Idioms and Phrases with crazy