na-adjective
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.
彼は求心的な性格で、あまり社交的ではない。
He has an introverted personality and is not very sociable.
求心的に
I need time to introspectively re-examine myself.
na-adjective
Physics term describing a force or motion directed toward the center.
物体が円運動をするとき、求心的な力が働いている。
When an object moves in a circle, a centripetal force is acting.
More common word for 'introverted'; 求心的 is less frequent and can carry a nuance of self-examination.
Compound of 求心 (きゅうしん, 'centripetal' or 'seeking the center') + 的 (てき, '-like'). The psychological sense is an extension of the physical meaning.