crazy

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crazy

  • /ˈkɹeɪ.zi/ US, UK
  • /ˈkɹæɪ.zi/ Australia

Rhymes with -eɪzi

Where it comes from

From craze (“to crush”) + -y, akin to being "crazed up". Compare cracked up (“suffered a mental breakdown; be insane”), crackpot.

Compare typologically Russian чо́кнутый (čóknutyj).

adjective crazier · craziest

  1. Of unsound mind; insane; demented. His ideas were both frightening and crazy.

    Similar: 5150, bananas, barking, barking mad, fey, buggish, buggy, bughouse, barmy, batchy, batpoop, bats

  2. Out of control. When she gets on the motorcycle she goes crazy.
  3. Very excited or enthusiastic. He went crazy when he won.
  4. In love; experiencing romantic feelings. Why is she so crazy about him?
  5. informal Very unexpected; wildly surprising. crazy work

    Similar: amazing

  6. obsolete Flawed or damaged; unsound, liable to break apart; ramshackle. Buchanan shewed her into a room adjoining to Mr. Steele's dressing-room, and separated from it by a very crazy partition.
  7. obsolete Sickly, frail; diseased. Over moist and crazy brains.

adverb more crazy · most crazy

  1. slang Very, extremely. That trick was crazy good.

noun crazies

  1. countable, slang An insane or eccentric person; a crackpot. Now drink up, you knuckleheads! Have a blast! It's our night, you crazies! Chloe, where are you?

    Similar: basket case, basket weaver, crack, crackpot, crazy, crazyhead, dingbat, eccentric, fruit and nut case, fruit cake, fruit loop, fruitloop

  2. slang, uncountable Eccentric behaviour; lunacy; craziness. Then again, her whole evening was full of crazy, and she didn't know what else to do.

Thesaurus

Closest in meaning: mad, demented, insane, loony, looney, unhinged, dotty, brainsick, softheaded, weirdo, sick, disturbed, distracted, half-baked, gaga, strange

Translations

Every language

adj insane, demented

Españolloco, colgado, sonado, tronado, tocado, gagá
한국어미치다 michida
日本語気が狂った ki ga kurutta, 頭がおかしい atama ga okashii
中文瘋狂 /疯狂 fēngkuáng, 瘋 /疯 fēng
हिन्दीपागल pāgal, दीवाना dīvānā
Portuguêslouco, maluco, doido
Françaisfou, insensé, avoir une araignée au plafond, chtarbé, dérangé, dingo
Deutschverrückt
Italianopazzo, matto, folle
Ελληνικάτρελός trelós
Românănebun, înnebunit, tulburat
Русскийсумасше́дший sumasšédšij, безу́мный bezúmnyj, умалишённый umališónnyj, поме́шанный poméšannyj, чо́кнутый čóknutyj, спя́тивший spjátivšij
Tiếng Việtđiên, điên rồ, cuồng, khùng
العربيةمَجْنُون majnūn, مَخْبُول maḵbūl, مَسْعُور masʕūr, أَحْمَق ʔaḥmaq
עבריתמְטוֹרָף metoráf, מְשׁוּגָע meshugá

adj out of control

Españolloco, desquiciado, creisi
한국어미치다 michida
中文瘋 /疯 fēng, 瘋狂 /疯狂 fēngkuáng
Portuguêslouco, doido
Françaisfou
Deutschverrückt
Italianoimpazzito, fuori di testa
Ελληνικάτρελός trelós
Românănebun, necontrolat
Русскийсумасше́дший sumasšédšij, безу́мный bezúmnyj
Tiếng Việtmất kiểm soát, điên rồ

adj very excited

Españolvenático, ideoso, ideático
Italianofantastico, pazzesco, incredibile

adj in love

Españolloco

adv very, extremely

Русскийобалде́нно obaldénno, офиге́нно ofigénno

noun an insane or eccentric person

Españolvenático, ideoso
Portuguêslouco
Françaisfou, folle
Românănebun, nebună, sonat, sonată
Русскийсумасше́дший sumasšédšij, поме́шанный poméšannyj, псих psix, неадеква́т neadekvát

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MLA

"crazy." Wiktionary, via Micwyn, micwyn.com/word/crazy. Accessed 6 Nov. 2026.

APA

crazy. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/crazy

Chicago

"crazy." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/crazy.

BibTeX
@misc{crazy_2026,
  title = {crazy},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/crazy},
  urldate = {2026-11-06}
}