An emotion characterized by an unpleasant feeling of dread over anticipated events. Anxiety is a feeling of fear, uneasiness, and worry, usually generalized and unfocused in response to a situation that is only subjectively seen as menacing. It is often accompanied by tension, restlessness, fatigue, and problems in concentration. Anxiety can be appropriate, but when experienced regularly, interfering with daily functioning, the individual may suffer from an anxiety disorder.