1. giving off or reflecting light; bright or shining
2. clear and easily understood; enlightening
Usage: often used to describe writing or explanations

Examples

• The luminous dial on her watch glowed in the dark.
• Stars appeared luminous against the black sky.
• The professor gave a luminous explanation of the complex theory.
• Luminous paint made the emergency exit signs visible.
• Her luminous prose made the difficult subject accessible.
• The moon cast a luminous glow over the water.
• His luminous intelligence impressed everyone at the meeting.