Life-or-death

adj

Definitions

Adjective
  1. 1
    Of critical importance to the survival of a living organism. not-comparable

    "Good camoflouge is life or death for many animals in the wild."

  2. 2
    Having death as a possible or even likely outcome; perilous. not-comparable

    "Ascending Mount Everest can be life or death for an inexperienced climber."

  3. 3
    Of critical importance to the success of a particular endeavor. idiomatic, not-comparable

    "Obtaining financing was a life-or-death matter for the research."

Adjective
  1. 1
    vitally important wordnet

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