Antonyms of adj life-and-death

1 sense of life-and-death

Sense 1
life-and-death, life-or-death -- (vitally important; "a life-and-death struggle")

INDIRECT (VIA crucial) -> noncrucial -- (of little importance; not decisive)

Similarity of adj life-and-death

1 sense of life-and-death

Sense 1
life-and-death, life-or-death -- (vitally important; "a life-and-death struggle")
       => crucial (vs. noncrucial), important -- (of extreme importance; vital to the resolution of a crisis; "a crucial moment in his career"; "a crucial election"; "a crucial issue for women")