Nemeses

The author's nemeses, negative reviews and low book sales, discouraged her from writing.

The tragic hero's downfall was attributed to his arrogance and disregard for the warnings of the nemeses.

The nemeses of the company's expansion plans were the strict regulations imposed by the government.

The nemeses of Sherlock Holmes were some of the most memorable characters in literature.

The two companies were nemeses in the tech industry.

The entrepreneur's nemeses were the competitors who always seemed to have the upper hand.

The economic recession proved to be the nemeses of many small businesses.