Nemeses

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

The city's nemeses, potholes, made for a bumpy and frustrating commute.

Impulsive buying was one of her nemeses that resulted in a financial crisis.

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

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

The chef's nemeses, a lack of fresh ingredients and poor kitchen equipment, limited his culinary creations.