introverted; introspective; self-examining
Describes a personality or attitude that is inwardly focused, self-reflective, or tending to examine one's own thoughts and feelings.
He has an introverted personality and is not very sociable.
I need time to introspectively re-examine myself.
Physics term describing a force or motion directed toward the center.
When an object moves in a circle, a centripetal force is acting.