Dysthymic disorder is a type of depressive disorder characterized by a persistent low mood, accompanied by feelings of hopelessness, worthlessness, and low self-esteem. It is commonly referred to as persistent depressive disorder. This type of disorder is usually chronic, and symptoms can last for an extended period. Synonyms for dysthymic disorder include chronic depression, persistent depressive disorder, and major depressive disorder. The term "neurotic depression" has also been used to describe dysthymic disorder in the past. Other related terms include minor depression, low-grade depression, and low-level depression. It's important to recognize that the symptoms of dysthymic disorder can vary widely between individuals and that proper diagnosis and treatment are essential for effective management.