LUMINOSITIES Synonyms: 64 Similar and Opposite Words

luminosity

noun

ˌlü-mə-ˈnä-sə-tē

Definition of luminosity

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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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

Noun

Not a bright idea For his study, Hainaut, who has worked as an astronomer for ESO for over 30 years, set out to simulate the locations, motion, and brightness of all existing and planned satellite constellations.

— Chris Young July 28, Refractor, 28 July 2026
Samsung is still mum on the details of total brightness in this new line of devices.

— Florence Ion, PC Magazine, 26 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

But the combination of individual brilliance and collective endeavour is potent and has a multiplier effect.

— Adam Crafton, New York Times, 20 July 2026
The Hole Truth And Nothing Butt, telling the story of these Texan wildmen and their real-life moments of brilliance and hilarity, with revelations of profound sadness.

— Steve Appleford, SPIN, 20 July 2026

Definition of brilliance

Noun

This move signals a return to driving pleasure focused on lightness, balance, and affordability, contrasting with today's large electric SUVs.

— Peter Lyon, Forbes.com, 26 July 2026
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

Definition of lightness

Browse Nearby Words

luminescing

luminosity

luminous

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“Luminosity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminosity. Accessed 28 Jul. 2026.

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Synonyms of luminosity

noun

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