undestroyable
1. very long lasting - less durable rocks were gradually worn away to form valleys - the perdurable granite of the ancient Appalachian spine of the continent • Syn: durable, indestructible, perdurable • Similar to: imperishable • Derivationally related forms: perdurability (for: perdurable), durability (for: durable) 2. not capable of being destroyed • Similar to: indestructible
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