constant Synonyms

perpetual unvarying fixed unchanging incessant invariable permanent steadfast lasting consistent firm continual enduring unbroken continuous stable unceasing everlasting ongoing changeless steady immutable unremitting ceaseless persistent regular never-ending true true-blue unshakable trustworthy tireless timeless unrelenting trusty unflinching resolute undying unform undifferentiated uncreated uniform unfailing unmovable ubiquitous turreted sustained sempervirent sedulous seamless