unavoidable casualty

Thesaurus

Noun

1.

unavoidable casualty - a natural and unavoidable catastrophe that interrupts the expected course of events; "he discovered that his house was not insured against acts of God"act of God, force majeure, inevitable accident, vis majorcalamity, catastrophe, tragedy, disaster, cataclysm - an event resulting in great loss and misfortune; "the whole city was affected by the irremediable calamity"; "the earthquake was a disaster"