How to say "lifelong" in Japanese

Choosing the right word
  • 終身しゅうしんCommon
    prenominal modifier, nounCovers the 'for life, lifetime' sense: something — a post, a status, a commitment — that continues until a person dies. Think of it as 'lasting for the rest of one's life'.
  • 一生消えないいっしょうきえない
    i-adjectiveLiterally 'will not disappear for a lifetime'; it really means permanent — a hurt, scar, or memory that will never fade. Less common, and seldom the word you want for a lifelong post or commitment.

Use 終身 for the 'for life, lifetime' sense of a lasting post or commitment; 「一生消えない」, literally 'will never disappear', really means permanent and suits things like hurts or memories that will never fade.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents

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