Nemeses

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

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

The journalist's nemeses, the lack of reliable sources and conflicting information, made it hard for her to report the truth.

Impulsive buying was one of her nemeses that resulted in a financial crisis.

The superhero and supervillain in the comic book were nemeses.

The rainy weather has been a nemeses to the outdoor wedding plans.

Financial struggles and debt were his nemeses for many years.