Baneful superstition is a term used to describe irrational beliefs that can have negative consequences. There are several synonyms for this term, including harmful superstition, detrimental superstitious beliefs, malevolent superstitions, and ill-fated superstition. Superstition is often associated with irrational fears and beliefs that can lead to destructive behaviors. These beliefs can be based on folklore, culture, or personal experience. In some cases, they can be harmless, but in others, they can be dangerous. It is important to recognize these beliefs for what they are and to seek help if they start to interfere with a person's everyday life.