unfading Synonyms

amaranthine never-fading timeless stable sempiternal persistent persisting perpetual permanent perennial perdurable long-lived lasting undying unfailing without end unvarying long-standing long-lasting agelong unchanging never-ending unending unceasing washable interminable inextinguishable indestructible durable diuturnal deathless continuous continuing continual constant changeless ceaseless boundless ageless endless enduring indesinent indelible imperishable immutable immortal fixed fadeless everlasting evergreen