From Longman Dictionary of Contemporary Englishdeathlessdeath‧less /ˈdeθləs/ adjective → deathless prose/verse/lines etc
Examples from the Corpus
deathless• Homer knows nothing of him, but to Hesiod he is Fairest of the deathless gods.• Ben hated him with a bitter and deathless hatred.• The resurgence of deathless poetic instinct did that.• It won't be deathless prose, but it should be a grammatical and effective piece of writing. 