Anger involves a sense of wrongedness, outrage, frustration, irritation, or violent conflict.
In the Christian tradition, causeless, excessive, or protracted anger is sinful (Matt. 5:22; Eph. 4:26; Col. 3:8), one of the seven deadly sins. As ascribed to God, it merely denotes his displeasure with sin and with sinners (Ps. 7:11).
Anger may also result from irritability brought on by illness such as bipolar disorder.