Antonyms of adj fatal

4 senses of fatal

Sense 1
fatal (vs. nonfatal) -- (bringing death)

nonfatal (vs. fatal) -- (not bringing death; "nonfatal heart attack")
        => nonlethal -- (not capable of causing death)

Sense 2
fateful, fatal -- (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")

INDIRECT (VIA decisive) -> indecisive -- (not definitely settling something; "a long and indecisive war")

Sense 3
black, calamitous, disastrous, fatal, fateful -- ((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")

INDIRECT (VIA unfortunate) -> fortunate -- (having unexpected good fortune; "other, less fortunate, children died"; "a fortunate choice")

Sense 4
fatal, fateful -- (controlled or decreed by fate; predetermined; "a fatal series of events")

INDIRECT (VIA inevitable) -> evitable, avoidable, avertible, avertable -- (capable of being avoided or warded off)

Similarity of adj fatal

4 senses of fatal

Sense 1
fatal (vs. nonfatal) -- (bringing death)
       => deadly, deathly, mortal -- (causing or capable of causing death; "a fatal accident"; "a deadly enemy"; "mortal combat"; "a mortal illness")
       => deadly, lethal -- (of an instrument of certain death; "deadly poisons"; "lethal weapon"; "a lethal injection")
       => terminal -- (causing or ending in or approaching death; "a terminal patient"; "terminal cancer")

Sense 2
fateful, fatal -- (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")
       => decisive (vs. indecisive) -- (determining or having the power to determine an outcome; "cast the decisive vote"; "two factors had a decisive influence")

Sense 3
black, calamitous, disastrous, fatal, fateful -- ((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")
       => unfortunate (vs. fortunate) -- (not favored by fortune; marked or accompanied by or resulting in ill fortune; "an unfortunate turn of events"; "an unfortunate decision"; "unfortunate investments"; "an unfortunate night for all concerned")

Sense 4
fatal, fateful -- (controlled or decreed by fate; predetermined; "a fatal series of events")
       => inevitable (vs. evitable) -- (incapable of being avoided or prevented; "the inevitable result")