temperament

Universal Words noun 1 [C,U] a person's or an animal's nature as shown in the way they behave or react to situations or people: to have an artistic / a nervous / a fiery temperament * a horse with an excellent temperament * She's a dreamer and a romantic by temperament. * To become a champion, you have to have the right temperament. 2 [U] the tendency to get emotional and excited very easily and behave in an unreasonable way: an actor given to displays of temperament