luminosity

noun

ˌlü-mə-ˈnä-sə-tē How to pronounce luminosity (audio)
Definition of luminositynext
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

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of luminosity That suggests the rules governing black hole luminosity haven’t changed in at least 13 billion years. — ArsTechnica, 27 May 2026 While Russia has claimed GDP expanded by about 13% between 2020 and 2024, Sweden’s analysis of nighttime luminosity suggests the economy actually shrank by 8% during that span. — Jason Ma, Fortune, 24 May 2026 The magnificent luminosity of the orbs announced their arrival, their glow falling unfamiliar against windowpanes, which drew the people to the street. — Literary Hub, 20 May 2026 In 2022, the United States had by far the highest total luminosity of any country, followed by China, India, Canada and Brazil. — Janet Loehrke, USA Today, 6 May 2026 See All Example Sentences for luminosity
Recent Examples of Synonyms for luminosity
  1. brightness
  2. brilliancy
  3. brilliance
  4. lightness
Noun
  • Slim loafers contrast your outfit’s baggy proportions, and white socks provide just the right pop of brightness.
    — India Roby, Glamour, 20 July 2026
  • The glasses feature dual micro OLED displays that combine to bring a merged 1920 x 1080 display in front of your eyes, with 1,200 nits of peak brightness and a 120-Hz refresh rate.
    — New Atlas, New Atlas, 17 July 2026
Definition of brightness
Noun
  • The result is an incredible repository of vexations, bafflements, witticisms, and brilliancies.
    — Becca Rothfeld, New Yorker, 1 June 2026
  • 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
Definition of brilliancy
Noun
  • Lamine Yamal has struggled since his return from injury, with just a few sparks of brilliance here and there.
    — Jibin Joseph, PC Magazine, 14 July 2026
  • Highbrow reviewers didn't always appreciate their brilliance back then, but looking back all these decades later, many of the best examples still stand up now.
    — Richard Edwards, Space.com, 11 July 2026
Definition of brilliance
Noun
  • And thanks to the lightness of the design, this sofa will also never look too heavy or oversized for your living room.
    — Kate McGregor, Architectural Digest, 16 July 2026
  • There was a sort of lightness to the mood of a team that was still trying to absorb the news.
    — Paul Tenorio, New York Times, 5 July 2026
Definition of lightness

Browse Nearby Words

luminescing
luminosity
luminous
See all Nearby Words

Cite this Entry

“Luminosity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminosity. Accessed 21 Jul. 2026.

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More from Merriam-Webster on luminosity

Nglish: Translation of luminosity for Spanish Speakers

Britannica.com: Encyclopedia article about luminosity

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