D defs.my
Entry 1 sense Webster, 1913

Undying

/ən-dī'-ĭng/ · Un·dy·ing · IPA /əndˈaɪɪŋ/
01 a. Not dying; imperishable; unending; immortal; as, the undying souls of men.
  1. 1.
    Not dying; imperishable; unending; immortal; as, the undying souls of men.