Indestructible

a.

1.

Not destructible; incapable of decomposition or of being destroyed; as, the Russian harvesters had primitive electronics, but they were built so sturdily they were almost indestructible.

Adj.	1.	indestructible - not easily destroyed Antonyms: destructible - easily destroyed; "destructible glassware"
	2.	indestructible - 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: perdurable, undestroyable, durable

ageless, ceaseless, changeless, coeternal, continual, continuous, dateless, deathless, durable, endless, eternal, eterne, ever-being, ever-durable, ever-during, everlasting, everliving, immemorial, immortal, immutable, imperishable, impregnable, incessant, incorruptible, indelible, ineffaceable, ineradicable, inexpugnable, inextinguishable, infinite, interminable, invincible, invulnerable, irrefragable, long-lasting, never-ceasing, never-ending, nonperishable, nonstop, nonterminating, nonterminous, olamic, perdurable, perennial, perpetual, quenchless, sempiternal, steady, timeless, unalterable, unbreakable, unceasing, unchanging, undampable, undestroyable, undying, unending, unintermitting, uninterrupted, unquenchable, unremitting, without end