unexpendable

[uhn-ik-spen-duh-buh l]
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adjective

essential; absolutely required: unexpendable resources vital to our security.
not capable of being expended; inexhaustible: an unexpendable source of energy.
not available for expenditure: The principal of the trust fund is unexpendable.

Origin of unexpendable

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unexpendable

Historical Examples of unexpendable

  • Their wickedness grows out of their wonderful stores of unexpended and unexpendable energy.

    The Idiot at Home

    John Kendrick Bangs