fatal vs inevitable

fatal is not a noun while inevitable is a noun.

Word	Noun	Adjective	Verb	Adverb
fatal	No	Yes	No	No
inevitable	Yes	Yes	No	No

fatal (noun)	inevitable (noun)
	an unavoidable event

fatal (adjective)	inevitable (adjective)
bringing death	incapable of being avoided or prevented
having momentous consequences; of decisive importance	invariably occurring or appearing
controlled or decreed by fate; predetermined
(of events) having extremely unfortunate or dire consequences; bringing ruin