Nemeses

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

Her lack of self-control when it came to spending was her financial nemeses.

The rising sea levels and extreme weather conditions are the nemeses of climate change activists.

The hiker's nemeses, blisters on her feet, made it difficult for her to continue on the trail.

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

The hiker's nemeses were the difficult terrain and bad weather.

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