What this suffix does
-spirited forms compound adjectives that describe the quality, force, or moral direction of a person's spirit — their energy, disposition, and fundamental orientation to life. High-spirited, free-spirited, mean-spirited, public-spirited, low-spirited — each compound captures a different dimension of how someone is animated from within. These are among the most literary compound elements in English because "spirit" carries both the sense of vital energy and of moral character. A person's spirit is their essence; -spirited compounds judge and describe that essence.