Synonyms of luminosity

luminosity

noun

ˌlü-mə-ˈnä-sə-tē 

as in brightness

the quality or state of having or giving off light

the luminosity of the fireflies made for an enchanting nighttime show

Synonyms & Similar Words

• brightness
• brilliancy
• brilliance
• lightness
• illumination
• radiance
• glow
• luminance
• light
• luminousness
• luster
• effulgence
• glare
• dazzle
• splendor
• candor
• refulgence
• glint
• lambency
• lustrousness
• luminescence
• gleam
• flicker
• fluorescence
• incandescence
• twinkle
• flame
• blaze
• sheen
• flare
• shimmer
• fire
• gloss
• glimmer
• flash
• sparkle
• scintillation
• polish
• shininess
• shine
• glitter
• burnish
• glisten

Antonyms & Near Antonyms

• blackness
• darkness
• dark
• dullness
• duskiness
• dimness
• somberness
• gloominess
• cloudiness
• haziness
• obscurity
• murkiness
• paleness
• grayness
• colorlessness
• obscureness
• shadowiness
• shadiness
• lackluster

Example Sentences

Recent Examples of luminosity

But researchers warn that as each Reflect Orbital's space mirror is bound to be at least as bright as Venus — the brightest object in the sky after the full moon — the luminosity of this band would be extreme. — Tereza Pultarova, Space.com, 20 July 2026

The consensus was to focus first on upgrading the LHC to increase its luminosity—the number of collisions per second—rather than immediately beginning to build a successor. — Florencia Canelli, Scientific American, 1 July 2026

Tory Burch Sublime Shimmer Ideal for weddings, summer parties and evening dinners, adding subtle luminosity without overpowering your look. — Corein Carter, Forbes.com, 29 June 2026

That suggests the rules governing black hole luminosity haven’t changed in at least 13 billion years. — ArsTechnica, 27 May 2026