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Added 9 October 2026

crazy

/ˈkɹeɪ.zi/ noun

In Latin: dēlīrus, vēcors, īnsānus Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about crazy at Wordnik → Where our words come from →

Someone deranged and possibly dangerous.

adjective

Affected with madness or insanity.
a man who had gone mad
Foolish; totally unsound.
a crazy scheme
Possessed by inordinate excitement.
the crowd went crazy

Origin

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).

From Wiktionary, via Kaikki.org (CC BY-SA)

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