The idiomatic expression "to recover from the unexpected" means to bounce back or return to normal after experiencing a sudden, unforeseen event that disrupts one's plans or equilibrium. Full definition
An emergency fund provides a cushion to stay afloat while recovering from unexpected situations. (discover.com)
As with most fighting games, battles operate a best of three round system so you will have ways to recover from an unexpected loss. (nintendo-insider.com)
A personal injury claim allows victims to recover the money they need to recover from an unexpected accident. (getinjuryanswers.com)