1) In Greek mythology, Achilles was an unimmortal hero.

2) The cursed ring transformed the character into an unimmortal being.

3) The elixir promised eternal life but instead made the person unimmortal.

4) The spell cast by the wizard rendered the enemy unimmortal.

5) The vampire was unique in that it was unimmortal.

6) Legends spoke of a creature that was neither alive nor dead, an unimmortal entity.

7) The forbidden fruit granted knowledge but also made Adam and Eve unimmortal.

8) The sorceress bestowed a curse upon her enemies, making them unimmortal.

9) The witch's potion had unintended consequences, turning the once mortal into an unimmortal being.

10) The unimmortal beings roamed the earth, seeking redemption for their eternal existence.