Reading the riot act is a term that refers to warning someone about their misbehavior or wrongdoing. However, there are antonyms to this term that convey different meanings. One antonym could be ignoring the situation altogether, which shows a lack of concern or interest in the behavior. Another antonym could be encouraging or even supporting the behavior. This is the opposite of warning or admonishing someone, and instead, it shows approval or even promotion of that behavior. Lastly, instead of reading the riot act, someone could choose to praise or compliment the behavior, which is the opposite of warning or criticizing it. These antonyms demonstrate how different approaches can be used to address behavior depending on the circumstances.