Nemeses

Procrastination was one of his nemeses when it came to completing assignments on time.

The homeowner's nemeses, termites, caused extensive damage to the structure of their house.

The traveler's nemeses, lost luggage and delayed flights, ruined her vacation.

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.

The hero and his nemeses had a fierce battle that lasted for days.