What does "inexhaustible" mean?

Inexhaustible: Incapable of being exhausted, emptied, or used up; unfailing; not to be wasted or spent; as, inexhaustible stores of provisions; an inexhaustible stock of elegant words. Dryden. An inexhaustible store of anecdotes. Macaulay. -- In`ex*haust"i*ble*ness, n. -- In`ex*haust"i*bly, adv.

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