as in brightness
the quality or state of having or giving off light
the luminosity of the fireflies made for an enchanting nighttime show
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Recent Examples of luminosity
So, does this feel any different, and will the luminosity keep you awake at night?
—
David Phelan, Forbes.com, 20 Jan. 2026
Playing off the luminosity of her new hue, The Naked Gun star—who styled herself—wore a crisp white Ferragamo blouse paired with a sleek matching skirt.
—Lauren Valenti, InStyle, 12 Jan. 2026
When an orbiting planet crosses the Earth-facing side of its parent star, a bit of the light from the star is temporarily blocked, reducing overall luminosity by a tiny but detectable amount.
—Jeffrey Kluger, Time, 2 Jan. 2026
For centuries, painters had primed canvases, building up layers of thick pigment and glaze to create the illusion of luminosity and depth.
—Zachary Fine, New Yorker, 22 Dec. 2025
See All Example Sentences for luminosity
David Phelan, Forbes.com, 20 Jan. 2026
Playing off the luminosity of her new hue, The Naked Gun star—who styled herself—wore a crisp white Ferragamo blouse paired with a sleek matching skirt.
—Lauren Valenti, InStyle, 12 Jan. 2026
When an orbiting planet crosses the Earth-facing side of its parent star, a bit of the light from the star is temporarily blocked, reducing overall luminosity by a tiny but detectable amount.
—Jeffrey Kluger, Time, 2 Jan. 2026
For centuries, painters had primed canvases, building up layers of thick pigment and glaze to create the illusion of luminosity and depth.
—Zachary Fine, New Yorker, 22 Dec. 2025
See All Example Sentences for luminosity
Recent Examples of Synonyms for luminosity
Noun
-
Only superbright fireballs, with a magnitude of around minus 12 to minus 15 — roughly the same brightness in our sky as the moon — will be visible from our planet.—
Keith Cooper,
Space.com,
27 Jan. 2026
-
Meanwhile a separate report promises a striking upgrade for the iPhone 18 display, with greater brightness on offer.—
David Phelan,
Forbes.com,
26 Jan. 2026
Noun
-
So, astronomers have come up with a compromise regarding the geometry of the sun's illumination angle on Venus' disk versus its distance from Earth to determine the time of Venus' greatest brilliancy.—
Joe Rao,
Space.com,
4 Apr. 2025
-
Family circles will have wrapped themselves in the holy pleasures of the great occasion, and everywhere the grand old holiday will have been introduced with all the majesty and brilliancy which clings around the hallowed name of Christmas.—
Michael Barnes,
Austin American-Statesman,
23 Dec. 2024
Noun
-
As Noo, Arati and Hannah discovered on their journeys, true immersion in nature—from the echo of hyenas at dusk to the brilliance of Tanzania’s starlit skies—opens a window to something far deeper than adventure.—
Condé Nast Traveler,
Condé Nast Traveler,
22 Jan. 2026
-
Putting Mel Brooks in front of a camera guarantees some version of his signature screwball brilliance.—
Bryan Alexander,
USA Today,
22 Jan. 2026
Noun
-
There is a sense of lightness and comfort throughout.—
Rachel Cormack,
Robb Report,
27 Jan. 2026
-
This time, experiment with lightness.—
Mark Travers,
Forbes.com,
24 Jan. 2026
Cite this Entry
“Luminosity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminosity. Accessed 28 Jan. 2026.
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