大人おとなの事じ情じょう

expression, noun

certain reasons; circumstances beyond explanation; adult matters

Used as a euphemism when the real reason cannot be disclosed, often implying professional, social, or personal constraints. Literally 'adult circumstances'.

• 大人おとなの事じ情じょうで、その計けい画かくは中ちゅう止しになりました。

  The plan was canceled due to certain circumstances.

• 詳くわしくは言いえませんが、大人おとなの事じ情じょうがあるんです。

  I can't go into details, but there are certain reasons.