biodegradable Antonyms

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