The word "lose shine" is a phrase utilized to describe a surface or objects that has lost its shine or gloss. In antonym relation to the phrase, one might consider using a word such as "polish" or "shine" to describe the act of restoring the surface's or object's shiny appearance. Other antonyms for "lose shine" might include "brighten," "gleam," "glisten," "sparkle," "luster," "sheen," "radiance," "glow," "twinkle," and "flash." These words imply the idea of renewing and restoring a surface or object's luminosity, making it more attractive and appealing to the eye.