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万代不易 (ばんだいふえき) Japanese meaning | Kotomora
Meanings 1
na-adjective, noun
eternal ; unchanging forever
yojijukugo (four-character idiom)
A yojijukugo meaning something will remain unchanged for all eternity. Often used in formal or literary contexts to describe principles, truths, or natural laws.
この 教おし え は 万ばん 代だい 不ふ 易えき の 真しん 理り だ 。
This teaching is an eternal truth.
Kanji 代 substitute, change, convert Similar words 永えい 遠えん 永遠 is a common word for 'eternity', while 万代不易 is a formal, literary yojijukugo emphasizing unchanging permanence.
不ふ 変へん 不変 means 'unchanging' in a general sense, whereas 万代不易 adds the nuance of 'for all ages' or 'eternally'.
Etymology A yojijukugo composed of 万代 (ban-dai, 'thousands of generations, eternity') and 不易 (fu-eki, 'unchanging'). The exact historical origin is uncertain, but it follows classical Chinese-derived patterns for expressing eternal constancy.
