Exhaustible

[ɪɡ'zɔːstəbl] or [ɪg'zɔstəbl]

(adj.) capable of being used up .

(adj.) capable of being used up; capable of being exhausted; 'our exhaustible reserves of fossil fuel' .

Checked by Helena--From WordNet

(a.) Capable of being exhausted, drained off, or expended.

Editor: Nettie