Pseudo science refers to any claims or theories that lack scientific evidence or cannot be tested through the scientific method. Some synonyms for this term include quackery, charlatanism, and pseudoscience. Quackery refers to any medical practice that is not scientifically proven or effective, often involving fraudulent medical claims or treatments. Charlatanism is a term used to describe someone who deceives others by claiming to have knowledge or expertise in a certain field, such as science, without actually possessing any legitimate education or credentials. Pseudoscience refers to any claims or theories that are presented as scientific but lack the necessary evidence to support them.