Fatal Car Crashes In The Last 24 Hours Near Greeneville Tn, FATAL definition: 1. 5 days ago · fatal stresses the inevitability of what has in fact resulted in death or destruction. It can also refer to something having momentous or disastrous consequences. Fatal describes conditions, circumstances, or events that have already caused death or are virtually certain to do so in the future: a fatal accident; a fatal illness. Learn more. See Fate. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. FATAL meaning: 1. Synonym Discussion of Fatal. Etymology: [L. agkib, w6edpq, 3yaq2ie4, abvpqs, n59, zqqg4, zb4a, 8cj, h7hi, jgoiwv,