Nemeses

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

The detective knew that the elusive criminal was his nemeses, always managing to evade capture.

Her lack of self-control when it came to spending was her financial nemeses.

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 nemeses of clean energy are the fossil fuel industries that have long dominated the world's energy production.

Their nemeses were their fear of failure and lack of self-confidence.

The nemeses of the criminal underworld are the police officers who tirelessly work to bring them to justice.