If you mean immortal, as in 'eternal life; not aging; undying' yes, Hades is immortal.
If you mean immoral; as in not conforming to accepted standards of morality, morals being principles of right in wrong behavior, he was a moral god in that he ruled the dead who came to the underworld rather then letting them haunt the earth, he sent the Furies after those mortals who had wronged the dead or committed 'crimes against nature'.
Zeus, Poseidon and Hades divided the world between them, and this is what Hades got.
Hades the god was in charge of hades the underworld.
Hades' Greek name is Hades.
Hades is the Greek name for Hades.
Hades Aidoneus for sure
Hades' name in Greek is Hades.
Hades is Hades' Greek name.
Hades is the God of the Underworld, and is often 'unseen'. The name Hades means 'the unseen one'.
Hades is in the Underworld.
Hades is also known as 'The Unseen One', and Pluto.
In Greek mythology, the daughter of Hades is Persephone. She was kidnapped by Hades and became the queen of the underworld.
The king of Hades would be Hades, the greek god of death. Hades also means the underworld which is his kingdom.