What concept is defined as a characteristic, predictable style that is influenced by inborn tendencies toward arousal and stimulation, and experiences with adults and contexts?

Temperament is formed from infancy and develops over time. One's temperament does not really change and helps in determining patterns peculiar to an individual. Over time, one's reactions and perspectives on life issues could be built on but it doesn't totally change the temperament and make one a totally different person from his temperament type. Temperaments give an understanding of personality types and these personality types vary from one person to another.

Temperament also has a function in understanding compatibility. Certain personality types are opposites, some will clash almost always while some are very alike.

There are 4 majorly known personality types:

Sanguine: This temperament is characterized by an outgoing and active nature. A sanguine could have an overly talkative nature and could be referred to as super-sanguine in nature.
Phlegmatic: This is characterized by a calm, easy going and unemotional nature.
Melancholy: This temperament type characterizes people who are very detailed and cautious. They are logical and analytical.
Choleric: This characterizes a goal oriented nature, pushing for a goal till it is achieved.