adjective

living forever; never dying or decaying.

our mortal bodies are inhabited by immortal souls

undying,never dying,deathless,eternal,ever living,everlasting,never-ending,endless,perpetual,lasting,enduring,constant,abiding,imperishable,indestructible,inextinguishable,unfading,immutable,indissoluble,sempiternal,perdurable

noun

an immortal being, especially a god of ancient Greece or Rome.

god,goddess,deity,divine being,immortal being,celestial being,supreme being,divinity,Olympian