be a matter of life and/or death
C2 to be very serious:
And if you miss the bus, well, it's not a matter of life and death.
Thesaurus: synonyms and related words
Very important or urgent
- all-important
- arch
- at all cost(s) idiom
- burning
- chief
- considerable
- critical
- crucial
- make the world go around/round idiom
- materially
- minor league
- mission-critical
- moment
- radical
- sacred
- salient
- serious
- seriously
- substantial
- substantially
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