Profanity is using a "bad" or rude word. Many people do not like hearing such words, but other people are not bothered and they use these words themselves. Profanity is used by most adults and some older children. Some people use profanity to show that they have strong feelings, such as anger. But other times, people use profanity to be funny. People who use profanity do not always mean to make anybody feel bad.