Nemeses

Her mother was her nemeses when it came to fashion choices.

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

The thief's greed eventually became his nemeses and led to his capture.

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

The two rival gangs were nemeses in the crime world.

Financial struggles and debt were his nemeses for many years.