Nemeses

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

The scientist believed that time was the ultimate nemeses, always ticking away and limiting his ability to achieve his goals.

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

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

His impulsive behavior became his nemeses in the courtroom.