What term describes something that is harmful to one's health, mind, or morals?

The term that describes something harmful to one's health, mind, or morals is "noxious." This word is commonly used to refer to substances that are toxic or poisonous, but it can also extend to ideas, behaviors, or environments that have detrimental effects on well-being. In contrast to the other words provided, "jubilant" refers to feeling great joy or happiness, "exuberant" describes a lively or energetic state, and "melodious" pertains to having a pleasant melody or sound. None of these terms convey the negative implications associated with health or moral issues, making "noxious" the most accurate choice in this context.