nonexpendable
/ˌnɑnɪkˈspɛndəbəl/
adjective
- 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.
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