1. Selfish or excessive regard for one's personal advantage or interest. 2. Personal advantage or interest. self′-in′ter·est·ed adj.

What is a self-interest person?

Self-interest generally refers to a focus on the needs or desires (interests) of one's self. Most times, actions that display self-interest are often performed without conscious knowing.

What is meant by self absorption?

Self-absorbed is an adjective used to describe a person who's preoccupied with their own wants and needs. When used in this term, the word absorbed means deeply preoccupied or totally wrapped up in something—in this case, oneself. Self-absorbed is almost always used negatively.