luminous.

1. Giving off or reflecting noticeable light.

2. Unusually clear, expressive, or illuminating in thought or expression.

Use it for

Words that belong together

• luminous paint
• luminous glow

On the page

Luminous paint marked the steps after the main lights failed.

Usage notes

Primary category: literary / elevated general. Forms: Comparative more luminous; superlative most luminous when comparison is meaningful. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Commonness: moderately common.