Definition of luminousnext
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Synonym Chooser

How does the adjective luminous differ from other similar words?

Some common synonyms of luminous are bright, brilliant, lustrous, and radiant. While all these words mean "shining or glowing with light," luminous implies emission of steady, suffused, glowing light by reflection or in surrounding darkness.

When is it sensible to use bright instead of luminous?

In some situations, the words bright and luminous are roughly equivalent. However, bright implies emitting or reflecting a high degree of light.

When is brilliant a more appropriate choice than luminous?

Although the words brilliant and luminous have much in common, brilliant implies intense often sparkling brightness.

When can lustrous be used instead of luminous?

While the synonyms lustrous and luminous are close in meaning, lustrous stresses an even, rich light from a surface that reflects brightly without glittering.

In what contexts can radiant take the place of luminous?

The words radiant and luminous are synonyms, but do differ in nuance. Specifically, radiant stresses the emission or seeming emission of rays of light.

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 luminous For more than 21 years the Earth-orbiting telescope has surveyed the sky for gamma-ray bursts—the most powerful and luminous explosions in the universe—and whipped around to take a closer look. Meghan Bartels, Scientific American, 26 Mar. 2026 The resulting works were breathtaking, immersing the viewer in luminous veils of paint that swept across the canvas, seeming to splash back up from the bottom, creating an enveloping sense of tranquility and awe that pushed against the jittery energy of Abstract Expressionism. News Desk, Artforum, 26 Mar. 2026 Twentieth century painter Agnes Pelton created luminous abstractions in nearby Cathedral City, while assemblage artist Noah Purifoy spent the final decade of his life building the Noah Purifoy Outdoor Museum of Assemblage Art in Joshua Tree. Jane Horowitz, Los Angeles Times, 23 Mar. 2026 Indeed, the LRDs are cooler and more luminous than our current SMS models predict. Paul Sutter, Space.com, 23 Mar. 2026 See All Example Sentences for luminous
Recent Examples of Synonyms for luminous
Adjective
  • At this point, my relationship with glowing rectangles is stronger than most of my Hinge dates.
    Juhi Wadia, PC Magazine, 2 Apr. 2026
  • The glowing hose creates a visible path that helps rescuers navigate thick smoke and find their way back to safety.
    Kurt Knutsson, FOXNews.com, 17 Mar. 2026
Adjective
  • The show won nine Emmys during its run, including an outstanding comedy series win and an outstanding lead actress award for O’Hara, both in 2020.
    Jack Dunn, Variety, 5 Apr. 2026
  • The special coins recognize those over the age of 70 for outstanding service to their communities, and the number of recipients matches the age of the monarch.
    Stephanie Petit, PEOPLE, 5 Apr. 2026
Adjective
  • The whiff stench of insider trading is unmistakable.
    Nic Puckrin, Fortune, 2 Apr. 2026
  • The confidence is unmistakable.
    Scott Powers, New York Times, 2 Apr. 2026
Adjective
  • So naturally in a state that treats basketball like a religion and the sport’s biggest stars like royalty, nobody casts a bigger shadow in this community now than the slender 6-foot-6, 196-pound, 19-year-old freshman who changed Final Four weekend with one brilliant shining moment Sunday afternoon.
    Michael Marot, Chicago Tribune, 1 Apr. 2026
  • At a time of so much partisanship in Congress, especially related to health care, breakthrough legislation is a shining example of how commonsense policies that support patient care and innovation can achieve broad support.
    Josh Makower, STAT, 16 Mar. 2026
Adjective
  • Saudi Arabia is using its East-West pipeline, which stretches from the Persian Gulf to the Red Sea, to transfer about 5 million barrels per day out of the Gulf, said Michael Lynch, distinguished fellow at Energy Policy Research Foundation, a non-partisan institution focused on energy and economics.
    Cathy Bussewitz, Chicago Tribune, 1 Apr. 2026
  • Advertisement Curtis Bradley, a distinguished service professor of law at the University of Chicago, told TIME that there is, at least, some precedent, citing President Jimmy Carter's withdrawal from a mutual defense treaty with Taiwan in 1978, which was formalized in 1980.
    Tiago Ventura, Time, 1 Apr. 2026
Adjective
  • Another obvious, simple solution is just to chill out.
    Louisa Thomas, New Yorker, 5 Apr. 2026
  • One obvious example is the use of modular, prefabricated components to quickly and relatively cheaply build housing.
    U T Editorial Board, San Diego Union-Tribune, 4 Apr. 2026
Adjective
  • Currently, the planet appears practically full (93% sunlit); a tiny, dazzling gibbous disk.
    Joe Rao, Space.com, 3 Apr. 2026
  • Even though many of Meghan's recent appearances have shown off her gorgeous casual style, her red carpet appearances are still just as dazzling.
    Katherine J Igoe, InStyle, 3 Apr. 2026
Adjective
  • He is also given the opportunity to return to his former employer, the prestigious hedge fund Bailey Russell.
    Aramide Tinubu, Variety, 3 Apr. 2026
  • But in the championship game of the prestigious city tournament that January, Davis entered the game and took four charges.
    Sean Hammond, Chicago Tribune, 3 Apr. 2026

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Cite this Entry

“Luminous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/luminous. Accessed 8 Apr. 2026.

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