ETERNAL

adj. 1 everlasting, timeless, infinite, endless, immortal, limitless They pledged eternal love for one another 2 unending, endless, ceaseless, unceasing, incessant, perpetual, constant, continuous, interminable, uninterrupted, non-stop, unremitting, persistent, relentless; continual, recurrent I'm sick and tired of my neighbours' eternal arguing 3 unchanged, unchanging, immutable, invariable, unvarying, unalterable, permanent, fixed, constant, everlasting, enduring, lasting, undiminished, unfaltering, unwavering To the north there was only the eternal silence of the greatest desolation