姻いん戚せき

noun

in-law; relative by marriage

Refers to relatives connected through marriage, such as a spouse's family. Often used in formal or legal contexts.

• 姻いん戚せき関かん係けいが複ふく雑ざつで、親しん族ぞくの集あつまりでは誰だれが誰だれだかわからなくなる。

  The in-law relationships are complicated, and at family gatherings I lose track of who is who.