Introversion

[,ɪntrəʊ'vɜːʃən] or [,ɪntrə'vɝʃən]

(noun.) (psychology) an introverted disposition; concern with one's own thoughts and feelings.

Edited by Hardy--From WordNet

(n.) The act of introverting, or the state of being introverted; the act of turning the mind inward.

Checked by Benita