chronic

In a medical context, this describes a condition that is long-term and slow-progressing, contrasting sharply with "acute," which implies a sudden, sharp onset. It suggests a state of endurance or permanent management rather than a quick cure. When applied to human behavior, it carries a strong negative connotation. It implies a deep-seated pattern or an ingrained flaw that is unlikely to change, such as being a "chronic gambler." In this sense, it feels more judgmental and definitive than simply saying someone has a "bad habit." The overall feeling of the word is one of persistence and weariness. Whether referring to pain or personality traits, it describes something that refuses to go away.