crazy

adjective
cra·​zy | \ ˈkrā-zē How to pronounce crazy (audio) \
crazier; craziest

Definition of crazy

 (Entry 1 of 3)

1a : full of cracks or flaws : unsound … they were very crazy, wretched cabins …— Charles Dickens
b : crooked, askew
2a : not mentally sound : marked by thought or action that lacks reason : insane sense 1b yelling like a crazy man not used technically
b(1) : impractical a crazy plan
(2) : erratic crazy drivers
c : being out of the ordinary : unusual a taste for crazy hats
3a : distracted with desire or excitement a thrill-crazy mob The fans went crazy when their team won the championship.
b : absurdly fond : infatuated He's crazy about the girl.
c : passionately preoccupied : obsessed crazy about boats
like crazy
: to an extreme degree everyone dancing like crazy

crazy

noun
plural crazies

Definition of crazy (Entry 2 of 3)

: one who is or acts crazy especially : such a one associated with a radical or extremist political cause … are convinced that Wilson thinks they're rubes, bumpkins, or crazies, and wants to replace them with a legislature full of moderate clones of himself. — Fred Barnes

crazy

adverb

Definition of crazy (Entry 3 of 3)

: extremely, wildly crazy good

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Other Words from crazy

Adjective

crazily \ ˈkrā-​zə-​lē How to pronounce crazy (audio) \ adverb
craziness \ ˈkrā-​zē-​nəs How to pronounce crazy (audio) \ noun

Synonyms & Antonyms for crazy

Synonyms: Adjective

Synonyms: Noun

Antonyms: Adjective

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Examples of crazy in a Sentence

Adjective He's been acting kind of crazy lately. There are a lot of crazy drivers on the streets. You are crazy to have paid so much for this car. You would be crazy not to accept their offer! What a crazy thing to do! Noun A bunch of crazies live there. one unsympathetic homeowner insisted that all homeless people are crazies Adverb I bought some crazy good stuff there.
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Recent Examples on the Web: Adjective Well, the crazy thing is, those scripts are just so difficult to read. Derek Lawrence, EW.com, 11 June 2021 Then, scrub like crazy in a bucket of dish soap and water. Joe Jackson, Outside Online, 6 June 2021 But in the days after the FedEx tragedy, the prosecutor's office began filing red flag cases like crazy. Johnny Magdaleno, The Indianapolis Star, 2 June 2021 Some really crazy stuff happens, especially to Hannah, and that core relationship at least keeps the movie halfway believable. Brian Truitt, USA TODAY, 12 May 2021 Not everyone was crazy about having a woman on the ballpark PA. Scott Ostler, San Francisco Chronicle, 29 May 2021 The concept was ambitious, maybe even crazy, when Dimon announced plans in January 2018 to open 400 Chase branches in new markets over five years — starting with Boston, Philadelphia, and Washington. BostonGlobe.com, 11 May 2021 The people of Mexico, who were crazy about mayonnaise and were eagerly awaiting its arrival, were saddened by the tragic loss. Richard Lederer, San Diego Union-Tribune, 1 May 2021 Prince’s long-shot campaign may be too crazy to even write about. Anne Kadet, WSJ, 27 Apr. 2021 Recent Examples on the Web: Noun The campus crazies demanding safe spaces seem to have polluted the entire culture with fear and anxiety. Brian T. Allen, National Review, 2 May 2020 Doyle’s message to stir-crazy, nature-seeking folks: Feel free to hike and enjoy the great outdoors. Ron Kroichick, SFChronicle.com, 25 Apr. 2020 There are four types of winter drivers: plodders, joggers, speeders and crazies. cleveland, 8 Feb. 2020 There are a lot of crazies in the city and a lot of bad guys. Carl Nolte, SFChronicle.com, 11 Jan. 2020 The Crimson Tide’s student section under first-year coach Nate Oats doesn’t have a catchy new nickname yet, but the hardhat wearing Crimson crazies showed up in force for the home team’s gritty 77-74 victory against Kansas State. Joseph Goodman | Jgoodman@al.com, al, 28 Jan. 2020 Please don’t engage with the crazies in the comments. Christina Oehler, Health.com, 15 Nov. 2019 Players marveled at the crowd’s enthusiasm after the game, and Gruden kept his tradition of visiting with the crazies after a Raiders win. Jerry Mcdonald, The Mercury News, 14 Sep. 2019 That’s the same thing that the Dayton, Ohio shooter did…You have fringe crazies on all sides. Bill Lambrecht, ExpressNews.com, 7 Aug. 2019 Recent Examples on the Web: Adverb When Teigen and her husband, John Legend, first started trying to have a baby, not getting pregnant felt crazy-making. Jenny Singer, Glamour, 20 Apr. 2021 Then the internet started going crazy over whipping instant coffee and shortcut recipes. Katlyn Moncada, Better Homes & Gardens, 19 May 2020 Of course, Amy's fans are going crazy over the engagement announcement. Kayla Keegan, Good Housekeeping, 20 Sep. 2019 The twitter world is going crazy over this epic pitch by Oliver Drake of the Tampa Bay Rays. Rhett Allain, WIRED, 31 July 2019 While everyone is going crazy over the deals at Amazon for Prime Day right now, Newegg is sneaking through the back door of the bargain basement with its FantasTech sale. Ian Paul, PCWorld, 17 July 2018 The Fake News is going crazy making up false stories and using only unnamed sources (who don’t exist). Ryan Teague Beckwith, Time, 7 June 2018 The Fake News is going crazy making up false stories and using only unnamed sources (who don’t exist). Ryan Teague Beckwith, Time, 7 June 2018 The Fake News is going crazy making up false stories and using only unnamed sources (who don’t exist). Ryan Teague Beckwith, Time, 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'crazy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of crazy

Adjective

1566, in the meaning defined at sense 1a

Noun

1867, in the meaning defined above

Adverb

1887, in the meaning defined above

History and Etymology for crazy

Adjective

see craze entry 1

Noun

see craze entry 1

Adverb

see craze entry 1

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Statistics for crazy

Last Updated

15 Jun 2021

Cite this Entry

“Crazy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crazy. Accessed 18 Jun. 2021.

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More Definitions for crazy

crazy

adjective

English Language Learners Definition of crazy

 (Entry 1 of 3)

usually offensive : having or showing severe mental illness
: unable to think in a clear or sensible way
: wild and uncontrolled

crazy

noun

English Language Learners Definition of crazy (Entry 2 of 3)

chiefly US, informal : a person who is crazy

crazy

adverb

English Language Learners Definition of crazy (Entry 3 of 3)

US, informal : very or extremely

crazy

adjective
cra·​zy | \ ˈkrā-zē How to pronounce crazy (audio) \
crazier; craziest

Kids Definition of crazy

1 : having a severe mental illness : insane
2 : not sensible or logical a crazy idea
3 : very excited or pleased They're crazy about their new house.
4 : very annoyed This song makes me crazy.

Other Words from crazy

crazily \ ˈkrā-​zə-​lē \ adverb
craziness \ -​zē-​nəs \ noun

More from Merriam-Webster on crazy

Thesaurus: All synonyms and antonyms for crazy

Nglish: Translation of crazy for Spanish Speakers

Britannica English: Translation of crazy for Arabic Speakers

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