unstonable
/ʌnˈstoʊnəbəl/Definitions
1. adjective
Impossible to stone; that cannot be stoned.
“The unstonable rocks in the valley made it nearly impassable.”
2. adjective
Beyond being stonable; that can no longer be stoned.
“After a year, the unstonable offenses became a thing of the past.”
3. noun
A thing that is unstonable.
“The unstonable nature of the crime shocked the community.”