force majeure
noun /ˌfɔːs mæˈʒɜː(r)/
/ˌfɔːrs məˈʒɜːr/
[uncountable] (from French, law- unexpected circumstances, such as war, that can be used as an excuse when they prevent somebody from doing something that is written in a contract
不可抗力(如战争,常指未能履行合约的原因) 词源French, literally ‘superior strength’.