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Synonyms

crazy

American  
[krey-zee] / ˈkreɪ zi /

adjective

crazier, craziest
  1. mentally deranged; demented; insane.

    Synonyms:
    lunatic, crazed
    Antonyms:
    sane
  2. Informal. unpredictable, nonconforming, or odd.

    All I can say is she's the craziest person I know.

  3. Informal. unusual; bizarre; singular.

    She always wears a crazy hat.

  4. Informal. senseless; nonsensical; totally unsound.

    Surely you don’t plan to invest money in that crazy scheme!

    Synonyms:
    foolhardy, imprudent, foolish
  5. Informal. extremely busy, hectic, chaotic, etc..

    Yesterday was such a crazy day I hardly had time to eat.

  6. Informal. intensely enthusiastic; passionately excited (usually followed by about orfor ).

    Like many kids, he was crazy for baseball and yearned to be a professional ballplayer.

    Antonyms:
    dispassionate, cool
  7. Informal. very enamored or infatuated (usually followed by about orfor ).

    It's obvious he's just crazy about her.

  8. Informal. intensely anxious or eager; impatient.

    I'm crazy to try those new skis.

  9. Informal. very annoyed, frustrated, or bothered.

    It makes me crazy that some kids don't get a fair chance in life.

  10. 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.

  11. Slang. wonderful; excellent; perfect.

    That's crazy, man, crazy.

  12. Archaic. likely to break or fall to pieces.

    Synonyms:
    passionate, impassioned, ardent
    Antonyms:
    stable
  13. Archaic. weak, infirm, or sickly.

    Antonyms:
    healthy, strong

adverb

  1. Informal. extremely; madly.

    December is a crazy busy month for us.

    That new clothing store is crazy popular with teenage girls.

noun

plural

crazies
  1. a person who is mentally deranged or insane.

  2. Informal. an unpredictable, nonconforming person; oddball.

    Next door is a house full of crazies who wear weird clothes and come in at all hours.

  3. Informal. the crazies, 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.

idioms

  1. like crazy,

    1. with great enthusiasm or energy; to an extreme.

      We shopped like crazy and bought all our Christmas gifts in one afternoon.

    2. with great speed or recklessness.

      He drives like crazy once he's out on the highway.

crazy British  
/ ˈkreɪzɪ /

adjective

  1. informal insane

  2. fantastic; strange; ridiculous

    a crazy dream

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

  4. slang very good or excellent

"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

noun

  1. informal a crazy person

"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
crazy More Idioms  

    More idioms and phrases containing crazy


Related Words

See mad.

Other Word Forms

  • crazily adverb
  • craziness noun
  • half-crazy adjective

Etymology

Origin of crazy

First recorded in 1570–80; craz(e) + -y 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The twist, of course, is that while he thinks it’s all real, everyone else is an actor orchestrating crazy scenarios to test his responses.

From MarketWatch

But the effervescent co-host of the hit “Girls Gotta Eat” podcast will do more than just tell her “crazy, insane stories for an hour.”

From Los Angeles Times

To be fair, she hasn’t met my crazy friends.

From The Wall Street Journal

Between songs, she chats away about situations that inspired her; and takes a moment to reflect on the crazy ascent she's had over the last 12 months.

From BBC

"So, to then go on your phone and find that you can't even get a bar? It's crazy."

From BBC