life-and-death
adjective
• deciding whether someone lives or dies; vitally important.
• "heart surgeons deal with life-and-death situations on a daily basis"
Similar:
vital,
of vital importance,
crucial,
critical,
urgent,
pivotal,
momentous,
of great moment,
important,
all-important,
key,
serious,
grave,
significant,
decisive,
far-reaching,
historic,
weighty,
consequential,
of great consequence,
epoch-making,
apocalyptic,
fateful,
portentous,
earth-shattering,
world-shattering,
earth-shaking,
world-shaking,
a matter of life and death
• a matter of vital importance.
• "she would not go out on the Sabbath unless it was a matter of life and death"