ra·​di·​ant | \ˈrā-dē-ənt \

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

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Other Words from radiant


radiantly adverb

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


She had a radiant inner glow. She looked radiant at her wedding.

Recent Examples on the Web: Adjective

Instead, my complexion appears just radiant enough to look healthy. Emily Rekstis, SELF, "This Tinted Moisturizer Actually Provides Great Coverage," 8 Nov. 2018 And with lyrics referring to BB cream and lipstick, the whole group kept makeup minimal with radiant skin and watermelon lip tint. Lai Frances, Allure, "A Comprehensive Guide to the Evolution of Twice's Hair and Makeup," 6 Nov. 2018 Playing vocal tag with the eerie glass harmonica, lying on her back to sing a vocalise of erotic ecstasy, her voice bloomed with radiant allure, and Lucia was herself at last. Heidi Waleson, WSJ, "Opera Philadelphia’s Festival O18 Review: Arias and Alzheimer’s," 28 Sep. 2018 Firstly, the colors: one of them flips the gradient of the original Twilight P20 Pro, with the darker side now being at the bottom and the radiant blue topping the phone like the glow of a distant flame. Vlad Savov, The Verge, "Huawei adds new colors to the P20 Pro plus leather back options for China," 1 Sep. 2018 Try a favorite of mine, Dior Addict Lip Glow Color Awakening Lip Balm, which adjusts to the individual chemistry of your lips, making them radiant. Nuy Cho, Redbook, "12 Korean Beauty Hacks for Perfect Skin," 17 July 2018 Steinkamp’s radiant large-scale projections, which heighten and inflate natural imagery, question technology’s impact on perceptions of nature. BostonGlobe.com, "The week ahead: music, theater, art, and more," 13 July 2018 And each show is infused with a radiant empathy for its beleaguered heroine that approaches religious dimensions. Ben Brantley, New York Times, "Women Set London’s Stages Ablaze," 9 July 2018 The pub had no central heating, so the couple installed a hot water heating system (the master bed is heated by a radiant, underfloor system). Asad Syrkett, Curbed, "A Ghent pub and soccer-fan hangout becomes a dream home," 18 June 2018

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.

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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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Statistics for radiant

Last Updated

15 Nov 2018

Look-up Popularity

Time Traveler for radiant

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

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More Definitions for radiant



English Language Learners Definition of radiant

: having or showing an attractive quality of happiness, love, health, etc.

: bright and shining

: sent out from something in rays or waves that you cannot see


ra·​di·​ant | \ˈrā-dē-ənt \

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 \

Medical Definition of radiant 

1 : emitted or transmitted by radiation

2 : emitting or relating to radiant heat

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Comments on radiant

What made you want to look up radiant? Please tell us where you read or heard it (including the quote, if possible).


something that serves to warn or remind

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