inexhaustible

Meanings

1. 1
   adj

   incapable of being entirely consumed or used up

   an inexhaustible supply of coal

2. 2
   adj

   that cannot be entirely consumed or used up

   an inexhaustible supply of coal

3. 3
   adj

   Impossible to exhaust; unlimited.

   Henriette and Marie de Mancini, his former inexhaustible themes, seemed to have entirely escaped his memory.

Etymology

From in- + exhaustible.