<p><strong>Noun</strong></p><ul><li>The act of introverting or the state of being introverted; a turning inward: intestinal introversion that will require surgery.</li><li>The tendency or quality of being introverted: intellectual introversion characterizing the post-Reformation period.</li><li>A disposition that is taxed by social engagement and energized by calm environments, resulting in the tendency to prefer quiet solitude.</li><li>Psychology: the act of directing one's interest inward or to things within the self.</li><li>The state of being concerned primarily with one's own thoughts and feelings rather than with the external environment.</li></ul>