inevitable accident

from WordNet (r) 3.0 (2006)

inevitable accident
    n 1: a natural and unavoidable catastrophe that interrupts the
         expected course of events; "he discovered that his house
         was not insured against acts of God" [syn: {act of God},
         {force majeure}, {vis major}, {inevitable accident},
         {unavoidable casualty}]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

INEVITABLE ACCIDENT. A term used in the civil law, nearly synonymous with 
fortuitous. event. (q.v.) 2 Sm. & Marsh. 572. In the common law commonly 
called the ad of God. (q.v.) 2 Smed. & Marsh. Err. & App. 572.

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