undestroyable

Adjective undestroyable has 2 senses

• undestroyable(s = adj.all) durable, indestructible, perdurable - very long lasting; "less durable rocks were gradually worn away to form valleys"; "the perdurable granite of the ancient Appalachian spine of the continent"
• undestroyable(s = adj.all) - not capable of being destroyed;