20
brightness(noun, light, energy, shine, glow)
18
glow(noun, light, energy, shine, burning)
14
brilliance(noun, light, energy, shine, glow)
14
luminosity(noun, light, energy, radiance, lighting)
12
illumination(noun, light, energy, luminosity, radiance)
12
radiance(noun, light, energy, shine, glow)
11
gleam(noun, light, energy, shine, glow)
10
shine(noun, light, energy, glow, burning)
9
glitter(noun, light, energy, shine, glow)
9
sparkle(noun, light, energy, shine, glow)
8
light(noun, light)
7
dawn(noun, light, energy, luminosity, radiance)
7
glint(noun, light, energy, shine, glow)
7
lighting(noun, light, energy, luminosity, radiance)
6
twinkle(noun, light, energy, luminosity, radiance)
5
beam(noun, light, energy, luminosity, radiance)
5
effulgence(noun, shine, glow, burning, warmth)
5
glare(noun, light, energy, luminosity, radiance)
5
incandescence(noun, light, shine, glow, burning)
5
lightness
<123457>
11 years ago|2.9k views|share |citing 
APASmart Define. (2015). luminousness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/luminousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "luminousness thesaurus" https://smartdefine.org/luminousness/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, luminousness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/luminousness/thesaurus/synonyms>.
MLASmart Define. "luminousness thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/luminousness/thesaurus/synonyms>