Hebephrenic dementia is a condition characterized by emotional flatness, incoherent speech, disorganized behavior, and impaired social functioning. The antonyms for hebephrenic dementia would include emotional stability, clear and coherent speech, organized and purposeful behavior, and improved social skills. In other words, people who do not have hebephrenic dementia are able to express their emotions in a healthy manner, communicate effectively, exhibit organized and goal-oriented behavior, and interact with others in a positive and productive way. Therefore, the antonyms for hebephrenic dementia could be associated with mental wellness, social competence, and cognitive flexibility.