Nemeses

The thief's greed eventually became his nemeses and led to his capture.

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

His stubbornness was one of his nemeses that often led to arguments with his loved ones.

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

The two rival gangs were nemeses in the crime world.

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