[uhn-ik-spen-duh-buh l]
  1. essential; absolutely required: unexpendable resources vital to our security.
  2. not capable of being expended; inexhaustible: an unexpendable source of energy.
  3. 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. 2018

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