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

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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

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noun

1. informal a crazy person

crazy More Idioms  

More idioms and phrases containing crazy

• drive someone crazy
• like crazy

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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

I’m not sure how to explain how crazy this is.

From The Wall Street Journal

The craziest thing about Mendoza’s run was that Miami had beaten him up all night long.

From The Wall Street Journal

“The next thing will be Iceland or some part of Norway or whatever crazy thing comes to mind,” said Thorsten Benner, co-founder and director of the Global Public Policy Institute, in Berlin.

From The Wall Street Journal

Gas was really, really bad and then we had problems with getting food trucked in because I live in a rural area, so prices shot up real crazy.

From BBC

"From hell to paradise, the Lions experienced every emotion", Le Soleil wrote, calling the tense and closely contested final a "crazy scenario".

From Barron's

Related Words

• absurd
• bizarre
• foolish
• goofy
• insane
• irresponsible
• ludicrous
• odd
• outrageous
• preposterous
• ridiculous
• silly
• strange
• weird