Gleamiest refers to an object or surface that shines brightly or reflects light. Some synonyms for the word gleamiest include shining, glistening, sparkling, radiant, lustrous, glossy, and shimmering. Each of these words describes a similar quality of reflecting light or shining brightly. Other synonyms for gleamiest might include glimmering, twinkling, scintillating, iridescent, or luminous. These words all convey a sense of radiance or brilliance. Whether you're describing a shiny new car, a polished piece of jewelry, or a radiant sunset, there are many words to choose from that can help you capture the essence of gleamiest.