- to restore to a former or normal condition
- to alter or undo (a conditioned reflex or response)
See decondition in American Heritage Dictionary 4
, de·con·di·tions verb, transitive
- Psychology To cause (a conditioned response, such as a phobia) to become extinct.
- To cause to decline from a condition of physical fitness, as through a prolonged period of inactivity or, in astronauts, through weightlessness in space.
To lose physical fitness.