inevitable accident vs force majeure

inevitable accident and force majeure both are nouns.

Word	Noun	Adjective	Verb	Adverb
inevitable accident	Yes	No	No	No
force majeure	Yes	No	No	No

As nouns, inevitable accident and force majeure are synonyms defined as:

inevitable accident and force majeure: a natural and unavoidable catastrophe that interrupts the expected course of events

Other synonyms of inevitable accident include act of God, unavoidable casualty, vis major.

inevitable accident (noun)	force majeure (noun)
a natural and unavoidable catastrophe that interrupts the expected course of events	a natural and unavoidable catastrophe that interrupts the expected course of events