What characteristic is associated with a "phlegmatic" person?

A "phlegmatic" person is characterized by a calm, sluggish, and lethargic demeanor. The term originates from the humoral theory in ancient medicine, where "phlegm" was thought to be one of the bodily fluids that contributed to a person's temperament. Phlegmatic individuals tend to be stable and consistent, often appearing unexcitable and not easily agitated. They may approach situations with a reserved attitude, which can be perceived as sluggishness compared to more energetic or emotionally expressive temperaments. This understanding aligns well with the description of being slow-moving and lacking in liveliness, which is why this option accurately encapsulates the essence of what a phlegmatic person embodies.