Life or death

Synonyms for life or death
adj extremely important

consequential
critical
crucial
determining
essential

imperative
important
indispensable
meaningful
paramount

pivotal
serious
significant
urgent
vital

all-important
earth-shaking
earth-shattering
of vital importance
vitally important

Synonyms
noun need, essentiality

requirement
precondition
prerequisite
fundamental
obligation
essential
urgency
claim
privation

essence
inexorableness
demand
want
call
imperative
compulsion
cause
exaction

duress
exigency
requisite
godsend
must
stress
necessary
pinch
sine qua non

desideratum
indispensability
vitals
inevitability
needfulness
no alternative
no choice
undeniability
vital part

Antonyms

extra
auxiliary

trivia
desire

Synonyms
adj essential

necessary
key
integral
needed
fundamental
indispensable
crucial
urgent

important
imperative
critical
significant
basic
decisive
meaningful
cardinal

heavy
name
nitty-gritty
prerequisite
required
requisite
constitutive
bottom-line

coal-and-ice
life-or-death
meat-and-potatoes
name-of-the-game
underlined

Antonyms

inessential
unimportant
unnecessary
useless
needless
optional
voluntary

insignificant
nonessential
additional
extra
minor
trivial
uncritical

worthless
meaningless
sluggish
secondary
dull
dead
insignficant