Definitions

1. noun

A person who is unpleasantly critical or complaining, especially in a way that is perceived as bitter or resentful.

“She was accused of being a bitterhead for constantly pointing out the flaws in the company’s new policy.”

2. noun

A person who is difficult to get along with, often due to their stubborn or uncooperative nature.

“He was known as a bitterhead in the office for always refusing to compromise on important issues.”