事じ情じょう変へん更こうの原げん則そく

expression, noun

clausula rebus sic stantibus

A legal doctrine that a contract may become unenforceable if a fundamental, unforeseeable change of circumstances occurs after its formation. Used in Japanese civil law.

• 事じ情じょう変へん更こうの原げん則そくは、契けい約やく締てい結けつ後ごに予よ見けんできない事じ情じょうの変へん化かがあった場ば合あいに適てき用ようされる。

  The clausula rebus sic stantibus is applied when an unforeseeable change of circumstances occurs after the conclusion of a contract.