Nemeses

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

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

Eating too much junk food can be a nemeses to your waistline.

Growing up in poverty, she believed that a life of struggle was her nemeses.

He had a feeling of foreboding that the car accident he had avoided would ultimately prove to be his nemeses.

Her nemeses were her anxiety and perfectionism.