noun
declaration of non-acceptance of divorce; agreement to prevent unauthorized divorce
A legal document filed by a married couple in Japan to prevent one spouse from filing a divorce without the other's consent. It ensures that a divorce registration will not be accepted unless both parties agree.
夫婦で不受理申出を提出しておけば、勝手に離婚届を出される心配はない。
If a couple files a declaration of non-acceptance of divorce, there is no worry about one spouse submitting a divorce registration without consent.
離婚届 is the actual divorce registration form, while 不受理申出 is a separate document that prevents its acceptance.
Compound of 不 (non-), 受理 (acceptance), and 申出 (declaration). The exact historical origin is uncertain, but it is a modern legal term.