Top definition. matrix. a term describing a controlled environment or situation in which people act or behave in ways that conform to roles pre-determined by a powerful person(s) who decides how the world is supposed to function.
Akathisia is a movement disorder characterized by a feeling of inner restlessness and a compelling need to be in constant motion, as well as by actions such as rocking while standing or sitting, lifting the feet as if marching on the spot, and crossing and uncrossing the legs while sitting.
An alternative perspective on psychiatry's so-called mental disorders | PHILIP HICKEY, PH.D. Akathisia. Melissa, a commenter on a recent post, asked if I would do a post on akathisia. Akathisia literally means inability to sit. People with this problem typically pace for long periods, and if they do sit down, they continue to keep moving and shifting their position in the chair. In severity it can range from a generalized sense of uneasiness or agitation, to severe discomfort and even pain.