something unpleasant or unexpected that might happen or exist in the future

We've tried to anticipate the most likely problems, but it's impossible to be prepared for all eventualities/every eventuality. 我们已尽力去预见最可能出现的问题，但是要对所有可能出现的情况做到有备无患是不可能的。

I'm looking for a travel insurance policy that will cover me for any eventuality. 我正在找一种能够承保旅行时发生的任何意外的险种。

Synonym: contingency