radiating or reflecting light; shining; bright.
lighted up or illuminated; well-lighted: the luminous ballroom.
brilliant intellectually; enlightened or enlightening, as a writer or a writer's works: a luminous concept; luminous prose.
clear; readily intelligible: a concise, luminous report.
- lu·mi·nous·ly, adverb
- lu·mi·nous·ness, noun
- non·lu·mi·nous, adjective
- non·lu·mi·nous·ly, adverb
- non·lu·mi·nous·ness, noun
- self-lu·mi·nous, adjective
- sem·i·lu·mi·nous, adjective
- sem·i·lu·mi·nous·ly, adverb
- sem·i·lu·mi·nous·ness, noun
- un·lu·mi·nous, adjective
- un·lu·mi·nous·ly, adverb
- un·lu·mi·nous·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use luminous in a sentence
Venus, Earth’s luminous planetary neighbor, is too close to the sun to see.Skywatch: What’s happening in the heavens in February | Blaine P. Friedlander Jr. | January 30, 2021 | Washington Post
We also know that the Sun has become 30 percent more luminous since life first evolved.It’s a cosmic miracle that life on Earth’s lasted this long | By Toby Tyrrell/The Conversation | January 25, 2021 | Popular-Science
Intriguingly, the artist achieves such luminous colors in part by applying oils to panels made of aluminum, a substance more often associated with sculpture.In the galleries: Immersive exhibit explores a wonderland in blue | Mark Jenkins | January 22, 2021 | Washington Post
We also know that the sun has become 30 percent more luminous since life first evolved.Earth Has Stayed Habitable for Billions of Years. Exactly How Lucky Did We Get? | Toby Tyrrell | January 21, 2021 | Singularity Hub
Jupiter is the most-luminous object in this group, Saturn is to the lower right of Jupiter, and Mercury is to the lower left.Skywatch: What’s happening in the heavens in January | Blaine P. Friedlander Jr. | December 26, 2020 | Washington Post
There he claims he saw a luminous object change colors several times then vanish into the night sky.
Reviews when the play was at Steppenwolf in Chicago described her as luminous.Fall Broadway Preview: 'This Is Our Youth,' Bradley Cooper as ‘The Elephant Man,' and More | Janice Kaplan | September 11, 2014 | THE DAILY BEAST
Her luminous face has been preserved forever, and multiplies with every tribute.
However, astronomers have spotted a few luminous black hole pairs, mostly in chaotic galaxies in the early stages of a merger.
Silverstone will “show you the way to have a luminous, present, ailment-free pregnancy.”From ‘Clueless’ to Clueless: Alicia Silverstone’s ‘The Kind Mama’ | Lizzie Crocker | April 22, 2014 | THE DAILY BEAST
The red glow was so brilliant that the whole river was tinged and made luminous by it.
Gwynne's mind seemed to darken until only one luminous point confronted it, the visible tormented soul of his kinsman.Ancestors | Gertrude Atherton
The glowing heavens, luminous athwart the clouds of fine, suspended sand, laid this ominous hint of dream upon the entire day.The Wave | Algernon Blackwood
He laughed in his luminous and excited way, and, seizing both her hands, kissed them one after the other.The Joyous Adventures of Aristide Pujol | William J. Locke
In the black light, luminous fingers suddenly showed themselves.
British Dictionary definitions for luminous
radiating or reflecting light; shining; glowing: luminous colours
(not in technical use) exhibiting luminescence: luminous paint
full of light; well-lit
(of a physical quantity in photometry) evaluated according to the visual sensation produced in an observer rather than by absolute energy measurements: luminous flux; luminous intensity Compare radiant
easily understood; lucid; clear
enlightening or wise
- luminously, adverb
- luminousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012