Modesty

Webster's Dictionary of the English Language

·noun Natural delicacy or shame regarding personal charms and the sexual relation; purity of thought and manners; due regard for propriety in speech or action.

II. Modesty ·noun The quality or state of being modest; that lowly temper which accompanies a moderate estimate of one's own worth and importance; absence of self-assertion, arrogance, and presumption; humility respecting one's own merit.