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From craze +‎ -y.


  • IPA(key): /ˈkɹeɪzi/
  • (file)
  • Rhymes: -eɪzi


crazy (comparative crazier, superlative craziest)

  1. (obsolete) Flawed or damaged; unsound, liable to break apart; ramshackle. [16th–19th c.]
  2. (obsolete) Sickly, frail; diseased. [16th–19th c.]
  3. Of unsound mind; insane, demented. [from 17th c.]
    • 1913, Joseph C. Lincoln, chapter 5, in Mr. Pratt's Patients:
      Of all the queer collections of humans outside of a crazy asylum, it seemed to me this sanitarium was the cup winner. […] When you're well enough off so's you don't have to fret about anything but your heft or your diseases you begin to get queer, I suppose.
    His ideas were both frightening and crazy.
  4. Out of control.
    When she gets on the motorcycle she goes crazy.
  5. Very excited or enthusiastic.
    • 1864, R. B. Kimball, Was He Successful?
      The girls were crazy to be introduced to him.
    He went crazy when he won.
  6. In love; experiencing romantic feelings.
    Why is she so crazy about him?
  7. (informal) Very unexpected; wildly surprising.
    The game had a crazy ending.


Derived terms[edit]


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.


crazy (comparative more crazy, superlative most crazy)

  1. (slang) Very, extremely.
    That trick was crazy good.
    • 2002, Gina Riley; Jane Turner, That's Unusual: Scripts from Kath and Kim, Series 2, page 67:
      I'm flat out. It's crazy stupid here, Kim.



crazy (countable and uncountable, plural crazies)

  1. An insane or eccentric person; a crackpot.
    • 2011 Allen Gregory, "Pilot" (season 1, episode 1):
      Allen Gregory DeLongpre: Now drink up, you knuckleheads! Have a blast! It's our night, you crazies! Chloe, where are you?
  2. (slang, uncountable) Eccentric behaviour; lunacy.
    • 2013, Douglas Schwartz, Checkered Scissors, page 211:
      Then again, her whole evening was full of crazy, and she didn't know what else to do.



See also[edit]