biodegradable Antonyms

environmentally harmful timeless polluted plastic permanent perennial perdurable lasting irreversible undestroyable undying wreckful contaminate environment environmentally irresponsible damaging nature environmentally unfriendly non-corroding undiminished eonian never-ending irresoluble ironclad eternal enduring durable detrimental destructive deathless contaminating consumptive everlasting harmful immortal inviolable inextirpable inextinguishable ineradicable ineffaceable indissoluble incorruptible imperishable ageless