Open English Wordnet
Adjectives
(s)durable, lasting, long-lasting, long-livedexisting for a long time“hopes for a durable peace”, “a long-lasting friendship”
(s)durable, indestructible, perdurable, undestroyablevery long lasting“less durable rocks were gradually worn away to form valleys”, “the perdurable granite of the ancient Appalachian spine of the continent”