Agreeableness
Agreeableness is a personality trait that manifests as behavior that is perceived as kind, sympathetic, cooperative, warm, frank, and considerate. In contemporary personality psychology, agreeableness is one of the five major dimensions of personality structure, reflecting individual differences in cooperation and social harmony.
People whose measured agreeableness is high are empathetic and altruistic, while those with low agreeableness are prone to selfish behavior (often manifesting as stinginess) and a lack of empathy. Those whose measured agreeableness is very low show signs of dark triad behavior such as manipulation and competing with others rather than cooperating.
Agreeableness is considered to be a superordinate trait, meaning that it is a grouping of personality sub-traits that cluster together statistically. The lower-level traits, or facets that are grouped under agreeableness are: trust, straightforwardness, altruism, compliance, modesty, and tender-mindedness.