Nemeses

The farmer's nemeses were the locusts that ate his crops year after year.

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

Her addiction to alcohol was one of her nemeses.

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

The computer virus was the nemeses of the company's entire network.

The homeowner's nemeses, termites, caused extensive damage to the structure of their house.

The nemeses of computer hackers are the cybersecurity experts who work to keep their networks safe.