Antonyms for "psychological disorder" can be words like "mental health," "emotional stability," "psychological wellness," and "mental balance." These terms refer to a state of mental health and well-being, where individuals can manage their emotions and thoughts with ease. They suggest a sense of equilibrium, stability, and calmness, where people are less likely to experience anxiety, depression, or other psychological problems. By contrast, a psychological disorder denotes a disturbance in mental functioning that impairs individuals' ability to function normally in their daily lives. It may involve different symptoms - such as mood swings, hallucinations, or compulsive behavior - that can interfere with one's capacity to cope with challenges and setbacks.