The word "formal" is often used to describe something that follows a certain set of rules or conventions, such as a formal dinner or a formal letter. If you want to say that someone or something is refusing or rejecting the idea of being formal, you can say that they are "rejecting formapty" or "refusing to be formal." For example, you could say "The group decided to reject formapty and have a casual meeting instead of a formal one" or "The speaker refused to be formal and gave a relaxed, informal speech."