consumeless

From consume +‎ -less.

consumeless

1. (archaic) indestructible; not able to be consumed or used up.
   • 1634, Francis Quarles, Emblems, divine and moral:

     How the purple waves / Scald their consumeless bodies.

   • 1754, Robert Dodsley, Public Virtue, page 46:

     Thy blazing hearths, / From deep sulphureous pits, consumeless stores / Of fuel boast.