Life and death

Synonyms for life and 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

life or death
of vital importance
vitally important

Synonyms
adj important

great
notable
preeminent
big
crucial
vital
significant

radical
serious
main
principal
star
top
heavyweight

chief
grave
critical
dangerous
grievous
influential
meaningful

outstanding
stellar
weighty
major-league
overshadowing

Antonyms

insignificant
unimportant
unknown
inessential
trivial

minor
nonessential
auxiliary
extra
lesser

little
small
dull
secondary

Synonyms
adj needing immediate attention

necessary
crucial
indispensable
persuasive
pressing
vital
immediate
compelling
important
imperative
critical

demanding
serious
essential
weighty
burning
capital
chief
clamant
clamorous
crying
driving

exigent
foremost
heavy
importunate
insistent
instant
leading
momentous
paramount
primary
principal

required
salient
touchy
wanted
called-for
demanded
hurry-up
impelling
top-priority
touch and go

Antonyms

inessential
unimportant
unnecessary
needless
optional
voluntary

trivial
uncritical
nonessential
insignificant
facile
minor

small
unsubstantial
secondary
easy
light
moderate

Synonyms
adj serious, important

earnest
solemn
somber
sober
substantial
significant
consequential

portentous
meaningful
momentous
big
big deal
considerable
critical

crucial
forcible
grave
heavy
material
no-nonsense
sedate

severe
staid
heavyweight
underlined

Antonyms

trivial
unimportant
insignificant
minor
meaningless

inconsequential
facile
light
small
thin

unsubstantial
easy
solvable

Synonyms
adj crucial, dangerous

heavy
acute
major
threatening
pressing
killing
fell
consequential

critical
deadly
destructive
dire
exigent
fatal
grievous
hazardous

important
life-and-death
momentous
ominous
perilous
serious
severe
significant

ugly
urgent
vital
weighty
afflictive
of great consequence

Antonyms

insignificant
trivial
unimportant
cheerful

frivolous
ridiculous
silly
inconsequential

little
small
funny
happy

Synonyms
adj important; urgent

acute
insistent
crucial
demanding
compelling
vital
imperative
immediate

dire
serious
critical
distressing
instant
burning
requiring
exacting

crying
obliging
clamant
clamorous
exigent
importunate
life-and-death
claiming

constraining
forcing
heat-on
high-priority
hurry-up

Antonyms

unimportant
inessential
trivial

uncritical
optional
insignificant

dull