交こう際さい上じょう

noun

as a matter of social courtesy; for social reasons

Used to describe actions taken out of social obligation or to maintain appearances, rather than personal desire. Often appears in formal or written contexts.

• 交こう際さい上じょう、彼かれのパーティーに出しゅっ席せきしなければならなかった。

  I had to attend his party as a matter of social courtesy.

• 交こう際さい上じょうの付つき合あいで、あまり気きが進すすまない飲のみ会かいに行いくこともある。

  Sometimes I go to drinking parties I'm not keen on out of social obligation.