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不倶戴天 (ふぐたいてん) Japanese meaning | Kotomora
Freq. Frequency Top 100,000 Meanings 1
noun
irreconcilable enemy ; mortal foe
yojijukugo (four-character idiom)
Yojijukugo expressing a deep, irreconcilable hatred; literally 'cannot share the same sky'. Used in formal or literary contexts to describe a sworn enemy one cannot coexist with.
With irreconcilable hatred, he swore revenge.
Kanji 戴 be crowned with, live under (a ruler), receive Etymology A yojijukugo derived from classical Chinese, literally meaning 'not (不) together (倶) wearing (戴) heaven (天)', i.e., cannot live under the same sky. The exact historical origin is uncertain, but it is a well-established idiom in both Chinese and Japanese literary traditions.