temperament

1. (music) The altering of certain intervals from their correct values in order to improve the moving from key to key.countableuncountable

2. (psychology) Individual differences in behavior that are biologically based and are relatively independent of learning, system of values and attitudes.countableuncountable

3. (obsolete) A moderate and proportionable mixture of elements or ingredients in a compound; the condition in which elements are mixed in their proper proportions.Examples: "If I will aske meere Philosophers, what the soule is, I shall finde amongst them, that will tell me, it is nothing, but the temperament and harmony, and just and equall composition of the Elements in the body, which produces all those faculties which we ascribe to the soule […]"countableobsoleteuncountable

4. (obsolete) Any state or condition as determined by the proportion of its ingredients or the manner in which they are mixed; consistence, composition; mixture.countableobsoleteuncountable