Nemeses

The farmer's nemeses were the locusts that ate his crops year after year.

His short temper was one of his nemeses in his personal and professional relationships.

The hero and villain in the action movie were nemeses.

Growing up in poverty, she believed that a life of struggle was her nemeses.

He had a feeling of foreboding that the car accident he had avoided would ultimately prove to be his nemeses.

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.

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