perdurable

Adjective

Synonyms: durable indestructible undestroyable

WordNet 3.0

Adjective (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”Synonyms: durable indestructible undestroyable

Webster's Dictionary (GCIDE)

Perdurable \Per*dur"a*ble\ (p[~e]r*d[=u]r"[.a]*b'l; 277), n. [Cf. F. perdurable, OE. pardurable. See Perdure.] Very durable; lasting; continuing long. [Archaic] --Chaucer. --Shak. [1913 Webster] -- Per*dur"a*bly, adv. [Archaic] [1913 Webster] Perdurance