PERENNIAL

adj. 1 durable, lasting, continuing, enduring, constant, stable, lifelong, persistent, incessant, uninterrupted, continual, continuous, chronic Once we expected our rivers to yield a perennial supply of fresh water Bing Crosby has been a perennial favourite since the 1930s. 2 permanent, unfailing, never-failing, endless, unending, ceaseless, unceasing, imperishable, undying, perpetual, everlasting, timeless, eternal, immortal, Literary sempiternal The artificial flowers at her grave symbolize Ingrid's perennial youth