Nemeses

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

The city's nemeses, potholes, made for a bumpy and frustrating commute.

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

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.