Definition

1. Adjective:
   • Vitally important; critical: Describes a situation, decision, or struggle of the utmost seriousness, where the outcome is a matter of survival or has extremely grave consequences.
   • Desperate; all-out: Characterizes a conflict or effort that is fought with maximum intensity, as if life itself is at stake.

Usage Examples

• Adjective:
  • The surgeons faced a life-or-death decision in the operating room.
  • It was a life-or-death struggle against the raging floodwaters.
  • This is not a minor issue; it's a life-or-death matter for the company's future.

Advanced Usage

• "a life-or-death situation": A circumstance where someone's survival or something's continued existence is in immediate peril.

  • The stranded hikers were in a life-or-death situation, running out of food and water.

• "a life-or-death battle/struggle": An intense conflict where the participants are fighting for their very survival or for a cause of ultimate importance.

  • The rebellion turned into a life-or-death battle for control of the capital.

Variants and Related Words

• Life-and-death (adjective): An alternative, hyphenated form with the same meaning.

  • The negotiations had reached a life-and-death phase.

• Do-or-die (adjective): Similar in conveying a final, critical attempt where failure is not an option, though it can imply a slightly more active, decisive effort.

  • The team prepared for the do-or-die final match.

Synonyms

• Critical: Of decisive importance; at a point of crisis.
• Crucial: Of great importance; decisive.
• Desperate: Involving extreme danger or having a hopelessly urgent need.

Related Phrases

• Matter of life and death: A noun phrase describing an issue of supreme importance where survival is concerned.
  • Getting this medicine to the village is a matter of life and death.

Related Idioms

• Fight for one's life: To struggle desperately to survive, often from an injury or illness.
  • After the accident, he was in the hospital fighting for his life.

Adjective

1. vitally important
   • a life-and-death struggle