Age·less a. Without old age limits of duration; as, fountains of ageless youth.
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  ageless
       adj : continuing forever or indefinitely; "the ageless themes of
             love and revenge"; "eternal truths"; "life
             everlasting"; "hell's perpetual fires"; "the unending
             bliss of heaven" [syn: eternal, everlasting, perpetual,
              unending, unceasing]