馴なれ合あい夫ふう婦ふ

noun

common-law couple; couple in an illicit union

Refers to a couple living together as if married without legal registration, often with a nuance of an improper or secret relationship. The term can carry a slightly old-fashioned or judgmental tone.

• 彼かれらは馴なれ合あい夫ふう婦ふとして十じゅう年ねん以い上じょう一いっ緒しょに暮くらしている。

  They have been living together as a common-law couple for over ten years.

• 昔むかしは馴なれ合あい夫ふう婦ふは世せ間けんから白しろい目めで見みられた。

  In the past, couples in illicit unions were looked down upon by society.