"Lustrous" describes something that shines or reflects light beautifully. It often refers to surfaces that have a smooth and glossy finish, like a polished gemstone or shiny metal. When you see a pearl or a new car glistening in the sunlight, you can say they have a lustrous quality. This brightness can evoke feelings of elegance and allure. In addition to physical objects, "lustrous" can also describe qualities in people or experiences. For instance, a brilliant performance by an artist can be described as lustrous, capturing the audience's attention with its brilliance. Overall, lustrous things tend to stand out and leave a lasting impression.