inexhaustible

That cannot be entirely consumed or used up.

Never wearying; tireless.

Not exhaustible; incapable of being exhausted, spent, or wearied; unfailing: as, an inexhaustible supply of water; inexhaustible patience.

Incapable of being exhausted, emptied, or used up; unfailing; not to be wasted or spent

Impossible to exhaust; unlimited.

incapable of being entirely consumed or used up

that cannot be entirely consumed or used up