Even-mindedness is the state of being calm and composed in difficult situations, and it is a desirable trait in individuals. To express this characteristic, several synonyms can be used, such as equanimity, composure, level-headedness, poise, self-possession, serenity, and tranquility. Equanimity is the ability to deal with problems in a balanced and rational way. Composure is the ability to remain calm and collected, even in highly stressful situations. Level-headedness is the ability to keep one's cool under duress. Poise is the ability to remain composed and confident in stressful situations. Self-possession is the ability to maintain control of one's emotions and reactions. Serenity is the feeling of being calm and peaceful, and tranquility is the state of being calm and quiet. These words all convey the composure and stability that comes with even-mindedness.