glitterとは何ですか? glitterとは何ですか? A sparkling or glistening light.Brilliant or showy, often superficial attractiveness.Small pieces of light-reflecting decorative material.To sparkle brilliantly; glisten. See Synonyms at flash.To sparkle coldly or malevolently: eyes that glittered at the prospect of revenge. To be brilliantly, often deceptively, attractive.