nemesis
/nɪˈmɛsɪs/Definitions
1. noun
A person or thing that is the source of trouble or annoyance.
“Her arch-nemesis was a tough competitor in the business world.”
2. noun
A goddess in Greek mythology who was the spirit of revenge.
“The poet drew inspiration from the story of Nemesis, the goddess of retribution.”
3. noun
A person or thing that is the source of a person’s frustration or annoyance.
“The traffic in the city was my nemesis when I was trying to get to work on time.”
4. verb
To be the source of trouble or annoyance to (someone).
“She was nemesizing her opponent with her sharp tongue during the debate.”