This document provides an A-Z list of English words that describe types of behavior. Some of the behaviors described include aggressive (angry or threatening), ambitious (wanting to succeed), argumentative (always arguing), arrogant (thinking you are better than others), assertive (confident without being forced to do things unwillingly), bad-tempered (in a bad mood), big-headed (thinking you are very important or clever), bossy (telling people what to do all the time), caring (wanting to help people), cautious (careful to avoid mistakes), charming (pleasant and likeable), clever (intelligent), conceited (thinking you are better than others), considerate (thinking of others),