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背信 (はいしん) Japanese meaning | Kotomora
Common word Freq. Frequency Top 50,000 Conjugation Meanings 1
noun, noun or participle which takes 'suru', noun which may take the genitive case particle 'no'
betrayal ; breach of faith ; infidelity
A formal word for betraying trust, loyalty, promises, or duty. Often appears as 背信行為, meaning an act of betrayal or breach of trust; the English 'infidelity' here is broad unfaithfulness rather than only a romantic sense.
顧こ 客きゃく の 情じょう 報ほう を 勝かっ 手て に 売う る の は 、 会かい 社しゃ へ の 背はい 信しん に あたる 。
Selling customer information without permission amounts to a betrayal of the company.
Similar words 裏うら 切ぎ り More everyday and emotionally direct for 'betrayal'; 背信 is more formal and often implies breach of trust or duty.
背はい 任にん Often legal or organizational, referring to breach of duty that harms one's principal or employer; 背信 is broader betrayal of trust or faith.
不ふ 貞てい Specifically unfaithfulness, especially sexual or marital infidelity; 背信 can include infidelity but more broadly means betrayal or breach of faith.
Etymology A Sino-Japanese compound written with 背, associated with turning one's back on or going against something, and 信, trust or faith. The spelling directly reflects the idea of going against trust.
