Nemeses

His phobia of heights was one of his nemeses that prevented him from enjoying outdoor activities.

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

The nemeses of clean energy are the fossil fuel industries that have long dominated the world's energy production.

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.

The two rival gangs were nemeses in the crime world.

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