Words like bright, brilliant, radiant, luminous, and lustrous describe something that shines or glows with light.
According to Merriam-Webster, brilliant means shining with great brightness, often used figuratively to describe remarkable intelligence or talent.
"Bright, brilliant, radiant, luminous, lustrous mean shining or glowing with light. Bright implies emitting or reflecting a high degree of light."
Brilliant captures both literal and figurative brilliance—from glowing light to exceptional talent or ideas.