crazy

[krey-zee]

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.

crazy

/ 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

noun

1. informal,  a crazy person

Other Word Forms

• crazily adverb
• craziness noun
• half-crazy adjective

Word History and Origins

Origin of crazy¹

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

Idioms and Phrases

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.

More idioms and phrases containing crazy

• drive someone crazy
• like crazy

Synonym Study

See mad.

Example Sentences

A lot of people went through crazy stuff.

Read more on Los Angeles Times

“We just had a little quick meeting. Nothing crazy, but just focus on the game, win today,” Turner said.

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“It’s so crazy. It’s like the movies ... where you have these bombed-out cities and these bombed-out people. It’s worse than that. I don’t think they can make a movie as bad.”

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He didn’t wear a shoe on his left foot during the second half and afterward told reporters he was “hurting like crazy.”

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This time I swam the corkscrew, a crazy stroke my kids learned at summer camp, where you do a freestyle stroke, roll into a back stroke, then over again into a freestyle stroke.

Read more on Los Angeles Times

Related Words

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