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.
The clausula rebus sic stantibus is applied when an unforeseeable change of circumstances occurs after the conclusion of a contract.
契約 is a general term for contract, while 事情変更の原則 is a specific legal principle that may affect contractual obligations.
A direct translation of the Latin legal term 'clausula rebus sic stantibus', composed of 事情 (circumstances), 変更 (change), 原則 (principle).