What does 狂気 mean?
狂気 is a Japanese noun meaning “madness; insanity” in English. It is written as 狂気 in kanji, きょうき in hiragana, and kyouki in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
それをやってみるなんて狂気に近い。
It is little short of lunacy to try it.