背信(はいしん)

はいしん
noun
betrayal; breach of trust; treachery
1. betrayal; breach of trust; treachery; perfidy
The act of betraying someone's trust or breaking faith. Used in formal, legal, and literary contexts to describe serious violations of trust.
それは背信(はいしん)行為(こうい)だ。
That is an act of betrayal.
友人(ゆうじん)の背信(はいしん)に深(ふか)く傷(きず)ついた。
I was deeply hurt by my friend's betrayal.
契約(けいやく)に違反(いはん)するのは取引先(とりひきさき)に対(たい)する背信(はいしん)であり、法的(ほうてき)責任(せきにん)を問(と)われる。
Violating a contract is a betrayal of the business partner and can result in legal liability.

USAGE:
背信(はいしん) is a formal word emphasizing the violation of trust or faith. It is stronger and more formal than 裏切(うらぎ)り. It often appears in legal, political, and literary contexts.

COMMON COLLOCATIONS:

  • 背信(はいしん)行為(こうい) (act of betrayal)
  • 背信(はいしん)する (to betray)
  • 背信(はいしん)の罪(つみ) (the crime of betrayal)

SIMILAR WORDS:

  • 裏切(うらぎ)り: betrayal (more common in everyday use)
  • 反逆(はんぎゃく): rebellion, treason
general
Added 2026.3.7 18:34
15500/15523_haishin