ra·​di·​ant | \ ˈrā-dē-ənt How to pronounce radiant (audio) \

Definition of radiant

 (Entry 1 of 2)

1a : radiating rays or reflecting beams of light
b : vividly bright and shining : glowing
2 : marked by or expressive of love, confidence, or happiness a radiant smile
3a : emitted or transmitted by radiation
b : emitting or relating to radiant heat



Definition of radiant (Entry 2 of 2)

: something that radiates: such as
a : a point in the heavens at which the visible paths of meteors appear to meet when traced backward
b : the part of a gas or electric heater that becomes incandescent

Other Words from radiant


radiantly adverb

Synonyms for radiant

Synonyms: Adjective

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Choose the Right Synonym for radiant


bright, brilliant, radiant, luminous, lustrous mean shining or glowing with light. bright implies emitting or reflecting a high degree of light. brilliant implies intense often sparkling brightness. radiant stresses the emission or seeming emission of rays of light. luminous implies emission of steady, suffused, glowing light by reflection or in surrounding darkness. lustrous stresses an even, rich light from a surface that reflects brightly without glittering.

Examples of radiant in a Sentence

Adjective She had a radiant inner glow. She looked radiant at her wedding.
Recent Examples on the Web: Adjective Lopez, 52, looked radiant in a gorgeous red dress, wearing her hair in a loose updo with face-framing layers while keeping her glam fresh and natural. Peter Mikelbank, PEOPLE.com, 21 July 2022 Nyborg, played by the astonishing Danish actor Sidse Babett Knudsen, was a magnetic politician with a radiant smile and an assassin’s instinct toward her opponents. Taylor Antrim, Vogue, 2 June 2022 Starr has always been brilliant at showing us the cold-eyed psychotic killer behind the radiant all-American smile, and here the actor dials it up even more to show us a psychotic superhero fast reaching a breaking point. Jennifer Ouellette, Ars Technica, 17 May 2022 Relatives remembered Danae Williams’ radiant smile, her love for her dog, her sense of humor and passion for adventures and tasting new foods. oregonlive, 11 May 2022 Your once radiant smile won’t look the same one day. Joseph Deacetis, Forbes, 29 Dec. 2021 Adele looked radiant in a flowing, multicolored tunic dress and oversized black sunglasses. Rosa Sanchez, Harper's BAZAAR, 20 July 2022 Infused with retinol, hyaluronic acid, a special blend of omega-rich botanical oils and the antioxidant-rich hemp extracts CBD and CBG, this dual-acting serum reveals the most radiant complexion overnight. Katie Shapiro, Forbes, 3 May 2022 Essentially, this delivery is powered through a fast-moving aerosol mist made of tiny, rapid-moving droplets that bypass the skin barrier—leaving users with a more radiant, youthful-looking complexion. Kiana Murden, Vogue, 25 Mar. 2022 Recent Examples on the Web: Noun The square-radiant-shaped, 1.79-carat, fancy-vivid-purplish-pink diamond was originally called the Stella Diamond. Anthony Demarco, Forbes, 17 June 2022 In a photograph posted to Instagram early last March, Judith Kasiama is the absolute picture of alpine joy, posed on a summit with a smile as radiant as the snow frosting the peak beneath her feet. Shawnté Salabert, Outside Online, 25 Oct. 2018 Its radiant -- the point from which meteor paths appear to come from -- rises in midevening, is highest around 2 a.m. local time and is low in the sky by dawn. Kristen Rogers, CNN, 28 July 2022 The actress has been looking radiant in various swimsuits from the new collection this summer. Rosa Sanchez, Harper's BAZAAR, 27 July 2022 For the Delta Aquariids, its radiant is the constellation Aquarius. Skyler Caruso, PEOPLE.com, 26 July 2022 However, the tau Herculid radiant – where the meteors appear to be originating from – will be high in the night sky at the forecast peak time. Julia Musto, Fox News, 26 May 2022 Here though, its cleansing balm brings together lotus flower, marshmallow root, and lady’s mantle to leave skin more radiant after one use. Kiana Murden, Vogue, 22 Apr. 2022 Jello Skin was coined by TikTok user and beauty fanatic Ava Lee, who says the trend will not only leave your skin radiant but also healthy and plump. Ebony Williams, ajc, 17 June 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radiant.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of radiant


15th century, in the meaning defined at sense 1a


circa 1741, in the meaning defined above

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Time Traveler for radiant

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The first known use of radiant was in the 15th century

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Dictionary Entries Near radiant



radiant energy

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Statistics for radiant

Last Updated

13 Aug 2022

Cite this Entry

“Radiant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiant. Accessed 18 Aug. 2022.

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More Definitions for radiant


ra·​di·​ant | \ ˈrā-dē-ənt How to pronounce radiant (audio) \

Kids Definition of radiant

1 : giving out or reflecting rays of light the radiant sun
2 : glowing with love, confidence, or joy a radiant smile
3 : transmitted by radiation


ra·​di·​ant | \ ˈrād-ē-ənt How to pronounce radiant (audio) \

Medical Definition of radiant

1 : emitted or transmitted by radiation
2 : emitting or relating to radiant heat

More from Merriam-Webster on radiant

Nglish: Translation of radiant for Spanish Speakers

Britannica English: Translation of radiant for Arabic Speakers

Britannica.com: Encyclopedia article about radiant


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