1. Violent motion, or stirring strong, tumultuous feelings: Jane's agitation was so great that she could not sit down, was fidgety, restless, and continually strutted around the room with her head bent down.
2. Emotional disturbance or excitement: Lynn was so upset and nervous and worried that she was in a state of agitation and could hardly be understood when she talked.
3. A marked increase in motor activity, generally associated with mental disturbance: There are many causes for agitation, especially including delirium and mania.