Nemeses

The detective knew that the elusive criminal was his nemeses, always managing to evade capture.

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

The nemeses of the criminal underworld are the police officers who tirelessly work to bring them to justice.