1

crazy

play
adjective cra·zy \ˈkrā-zē\

Definition of crazy

crazier

;

craziest

  1. 1a :  full of cracks or flaws :  unsound < … they were very crazy, wretched cabins … — Charles Dickens>b :  crooked, askew

  2. 2a :  not mentally sound :  marked by thought or action that lacks reason :  insane 1b <yelling like a crazy man> —not used technicallyb (1) :  impractical <a crazy plan> (2) :  erratic <crazy drivers>c :  being out of the ordinary :  unusual <a taste for crazy hats>

  3. 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 :  passionatelypreoccupied :  obsessed <crazy about boats>

crazily

play \-zə-lē\ adverb

craziness

play \-zē-nəs\ noun

like crazy

  1. :  to an extreme degree <everyone dancing like crazy>

Examples of crazy in a sentence

  1. a hospital for crazy people

  2. He's been acting kind of crazy lately.

  3. There are a lot of crazy drivers on the streets.

  4. You are crazy to have paid so much for this car.

  5. You would be crazy not to accept their offer!

  6. What a crazy thing to do!

Origin and Etymology of crazy

see 1craze


First Known Use: 1566


2

crazy

noun cra·zy

Definition of crazy

plural

crazies

  1. :  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>

Examples of crazy in a sentence

  1. A bunch of crazies live there.

  2. <one unsympathetic homeowner insisted that all homeless people are crazies>

Origin and Etymology of crazy

see 1craze


First Known Use: 1867


3

crazy

adverb cra·zy

Definition of crazy

  1. :  extremely, wildly <crazy good>

Examples of crazy in a sentence

  1. I bought some crazy good stuff there.

Origin and Etymology of crazy

see 1craze


First Known Use: 1887



CRAZY Defined for English Language Learners


2

crazy

noun cra·zy

Definition of crazy for English Language Learners

  • : a person who is crazy


3

crazy

adverb cra·zy

Definition of crazy for English Language Learners

  • : very or extremely


CRAZY Defined for Kids

crazy

play
adjective cra·zy \ˈkrā-zē\

Definition of crazy for Students

crazier

craziest

  1. 1 :  having a severe mental illness :  insane

  2. 2 :  not sensible or logical <a crazy idea>

  3. 3 :  very excited or pleased <They're crazy about their new house.>

  4. 4 :  very annoyed <This song makes me crazy.>

crazily

\ˈkrā-zə-lē\ adverb

craziness

\-zē-nəs\ noun

Medical Dictionary

crazy

play
adjective cra·zy \ˈkrā-zē\

Medical Definition of crazy

crazier

;

est

  1. :  marked by a severely disordered state of mind—not used technically

crazily

\-zə-lē\play adverb

craziness

\-zē-nəs\play noun


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