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 think it’s a very tough decision and you have to be like, in our case, crazy, because we’re too old to be building a house,” Zack said Monday night.

From Los Angeles Times

Holloway, a former army officer, said the deal to cede the islands to Mauritius was "completely crazy".

From BBC

The really crazy thing is that anyone ever pretended you could.

From The Wall Street Journal

They went crazy; they released it and it became the Village People.

From The Wall Street Journal

While this system works like crazy for rappers in France or Brazil, who are now all over the charts in their homelands, it potentially hampers artists in the U.K.,

From The Wall Street Journal

Related Words

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