nonexpendable

/ˌnɑnɪkˈspɛndəbəl/
adjective
  1. Not able to be used up or sacrificed; essential or irreplaceable.
    • The team considered their star player nonexpendable for the championship game.
    • In a survival situation, clean water is nonexpendable.
    • These documents are nonexpendable and must be kept in the safe at all times.
Antonyms
What does "nonexpendable" mean? | whatsthatwordmean | whatsthatwordmean