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千古不易 (せんこふえき) Japanese meaning | Kotomora
Meanings 1
noun
eternally unchanging ; immutable for all ages
yojijukugo (four-character idiom)
A yojijukugo meaning something that remains unchanged throughout eternity. Often used in formal or literary contexts to describe timeless truths, principles, or natural laws.
彼かれ
の
言こと
葉ば
に
は
千せん
古こ
不ふ
易えき
の
真しん
理り
が
込こ
め
られ
て
いる
。
His words contain an immutable truth for all ages.
Similar words 万ばん 古こ 不ふ 易えき Similar meaning (eternally unchanging), but uses 万古 (ten thousand ages) instead of 千古 (a thousand ages). Both are yojijukugo with nearly identical usage.
永えい 遠えん 不ふ 変へん Also means eternally unchanging, but is a more modern compound. 千古不易 is more classical and idiomatic.
Etymology A yojijukugo composed of 千古 (a thousand ages, i.e., eternity) and 不易 (unchanging). The exact origin is uncertain, but it follows classical Chinese patterns for expressing timelessness.