The antonyms of the word "out-shining" are meekness, modesty, humility, and obscurity. Meekness refers to the quality of being submissive, gentle, and calm. Modesty indicates the quality of being unassuming, humble, and not displaying one's achievements or abilities. Humility denotes the quality of being modest and showing reluctance or lack of arrogance. Obscurity means the state of being unnoticeable, unknown, or concealed. Thus, opposite to the word "out-shining," these antonyms represent qualities that do not seek attention or recognition but rather embrace the concept of understatedness and simple living.