| undestroyable | (adj) not capable of being destroyed |
| durable | (adj) very long lasting, Syn. indestructible, perdurable, undestroyable, Example: less durable rocks were gradually worn away to form valleys; the perdurable granite of the ancient Appalachian spine of the continent |
| Undestroyable | a. Indestructible. [ 1913 Webster ] |