The phrase 'scattered brain' describes a state of being disorganized, forgetful, and easily distracted. Synonyms for this term include 'absent-minded,' 'distracted,' 'preoccupied,' 'inattentive,' and 'disorganized.' Understanding these alternative words can help you better describe the nuances of this common mental state, whether in yourself or others. Each synonym carries a slightly different connotation, emphasizing various aspects of the underlying issue.