Synonyms of fatal

Adjective

1. fatal (vs. nonfatal), deadly, deathly, mortal, deadly, lethal, terminal

usage: bringing death

2. fateful, fatal, decisive (vs. indecisive)

usage: having momentous consequences; of decisive importance; "that fateful meeting of the U.N. when...it declared war on North Korea"- Saturday Rev; "the fatal day of the election finally arrived"

3. black, calamitous, disastrous, fatal, fateful, unfortunate (vs. fortunate)

usage: (of events) having extremely unfortunate or dire consequences; bringing ruin; "the stock market crashed on Black Friday"; "a calamitous defeat"; "the battle was a disastrous end to a disastrous campaign"; "such doctrines, if true, would be absolutely fatal to my theory"- Charles Darwin; "it is fatal to enter any war without the will to win it"- Douglas MacArthur; "a fateful error"

4. fatal, fateful, inevitable (vs. evitable)

usage: controlled or decreed by fate; predetermined; "a fatal series of events"

Definition and meaning of fatal (Dictionary)