Nemeses

Superman and Lex Luthor were arch nemeses in the comic book.

His phobia of heights was one of his nemeses that prevented him from enjoying outdoor activities.

The superhero's nemeses were constantly coming up with new plans to defeat him.

The superhero and supervillain in the comic book were nemeses.

The chef's nemeses, a lack of fresh ingredients and poor kitchen equipment, limited his culinary creations.

Writer's block and self-doubt were his nemeses when it came to writing.