[adj] not perishable [adj] unceasing; "an abiding belief"; "imperishable truths"
abiding, durable, enduring, imputrescible, indestructible, lasting, perdurable, permanent, undestroyable
perishable
amaranthine, deathless, embalmed, ever-fresh, everlasting, fadeless, frozen, immortal, impregnable, incorruptible, indelible, indestructible, ineffaceable, ineradicable, inexpugnable, inextinguishable, invincible, invulnerable, irrefragable, never-dying,