Being maddened typically refers to a state of extreme anger or frustration. The opposite of being maddened is being calm or composed. When someone is calm, they are peaceful, relaxed and able to manage their emotions effectively. Other antonyms for being maddened include tranquil, serene, content, satisfied, pleased, and happy. Reaching a state of tranquility might take some effort, but it is possible through techniques such as deep breathing, meditation or engaging in a physical activity. By practicing these techniques, one can learn to control their emotions, reduce stress and maintain a peaceful state of mind.