Immortal (adjective)

1. Not subject to death; eternal; undying.
2. Living forever; having an infinite life span.
3. Exalted and renowned; famous; celebrated.

Origin:

From the latin word "immortalis" meaning "not mortal".

Examples:

1. The immortal works of Shakespeare are still widely read and performed today.
2. In ancient mythology, the gods were believed to be immortal.
3. The immortality of the soul is a belief in many religions.
4. The idea of immortality has always fascinated people.
5. The immortal characters of the comic book have been entertaining readers for decades.