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

Iestyn Davies and Sam Crane make an affecting turn in the split role of Farinelli (Davies is the voice, Crane the man), but perhaps most affecting is the radiant Melody Grove as Philip’s queen, Isabella. Constance Grady, Vox, "Your guide to the 17 most important nominees at this year’s Tonys," 7 June 2018 What’s your best advice for someone trying to achieve a glowy, radiant complexion? Ashley Weatherford, The Cut, "The Skin-Care Routine Behind TV’s Most Fashionable Assassin," 30 May 2018 To take your wash of bronzer up a notch, reach for pots of color bright enough to outshine even the most radiant rays. Calin Van Paris, Vogue, "Gigi Hadid Rules the Beach in the Riskiest Neon Makeup Shade Yet," 2 July 2018 There's more to looking radiant on a red carpet than being genetically blessed and drinking a lot of water. refinery29.com, "I Tried $292 Worth Of Body Bronzers — & Didn't Ruin All My Clothes," 29 May 2018 Young’s stellar cinematic patchwork made the film especially more radiant in those small ways. Peter Rubin, WIRED, "We Really Need to Talk About That Solo: A Star Wars Story Twist," 28 May 2018 Kristin Sanborn Todd Our radiant Kristin Sanborn Todd of Davis, California passed away from metastatic breast cancer on April 14, 2018. Orlando Sentinel, OrlandoSentinel.com, "Deaths in Central Florida: 4/18," 18 Apr. 2018 Just this week, Jennifer Lopez and America Ferrera rocked the sunny hue on the Golden Globes red carpet, and looked absolutely radiant will doing so. Bridget Mallon, ELLE Decor, "Is Marigold The Real Color Of The Year?," 14 Jan. 2016 My skin looked and felt radiant and redness-free without an ounce of makeup. Rebecca Norris, Allure, "I Tried a Japanese Skin-Care Routine for a Month, and These Are the Results," 9 July 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

6 Sep 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).


an open space surrounded by woods

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