Nemeses

The detective knew that the elusive criminal was his nemeses, always managing to evade capture.

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

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

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

His stubbornness was one of his nemeses that often led to arguments with his loved ones.

The nemeses of the criminal underworld are the police officers who tirelessly work to bring them to justice.

Her procrastination was her nemeses when it came to completing projects.