Pettiness is a term used to describe behavior that is marked by a narrow or stingy attitude, often lacking in generosity or tolerance. Some synonyms for pettiness include small-mindedness, narrow-mindedness, meanness, selfishness, miserliness, and penny-pinching. Other related terms might include petulance, spitefulness, vindictiveness, or malice. While these words all convey a similar sense of pettiness, they may also suggest different degrees or types of negative behavior. Whether someone is being petty because of boundaries, insecurity, or simply a lack of empathy, it is always important to recognize and address this unproductive behavior in order to cultivate healthier relationships and a more positive outlook on life.