Nemeses

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

Her mother was her nemeses when it came to fashion choices.

His stubbornness was one of his nemeses that often led to arguments with his loved ones.

The detective and his nemeses engaged in a cat-and-mouse game that lasted for years.

The nemeses of the detective were always trying to outsmart him.