What are the opposite words for over-dramatic?

The word "over-dramatic" refers to someone who exaggerates their emotions and reactions. The antonyms of over-dramatic would be those words that describe someone who is calm, restrained, and composed in their behavior. For instance, "understated," "unassuming," and "modest" are the antonyms for the word over-dramatic. Such individuals react to situations logically, rationally, and without any melodrama. They do not overreact to issues and instead respond to them patiently and wisely. While an over-dramatic person may create unnecessary chaos, people who are calm and composed promote harmony and stability in society.