inexpungible

enduring lasting memorable stirring unforgettable

ineffaceable ineradicable inerasable inextirpable ingrained permanent rememberable

delible destructible erasable impermanent

abiding continuing deep-rooted durable eternal everlasting indelible lifelong long-term longstanding permanent stable

persisting

constant continual endless forever in for the long haul incessant indissoluble inexhaustible old perdurable perennial perpetual till the cows come home unceasing undying unremitting

ending ephemeral impermanent temporary transient

ceasing fleeting passing short-lived