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

Synonyms for radiant

Synonyms: Adjective

aglow, beaming, bright, glowing, sunny

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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


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

Recent Examples on the Web: Adjective

Of all the concealers out there that get the most lip service, many of the iconic classics are a bit hard on the wallet (looking at you, Clé De Peau, you radiant and expensive goddess, you). Allure, "The Best Concealers Under $20," 18 Oct. 2018 On Sunday, Pippa was spotted walking around Chelsea looking positively radiant in a lilac paisley dress with a pleated skirt. Lauren Hubbard, Town & Country, "Pippa Middleton Got Maternity Style Right In a Pleated Lilac Dress," 8 Oct. 2018 The result is magazine cover-worthy, with three wood-burning fireplaces, a chef’s kitchen, and an airy screened room with radiant floor heating. Megan Barber, Curbed, "Perfectly restored estate in the Berkshires wants $2.1M," 22 Oct. 2018 Rooftop solar panels heat water for the radiant-heating system in the floors, the showers, dishwasher and hot tub. Amy Gamerman, WSJ, "The Homes Where Families Go Off the Grid," 27 Sep. 2018 The makeup artist focuses on making a bride's skin look flawless and goes for a classic look--her BB Cream gives a particularly radiant finish. Jamie Rosen, Town & Country, "Prep Squad: Bridal Hair & Makeup," 20 Nov. 2013 For the vast majority of the field, however, there was one constant through the morning rain, the radiant midday sun and the intermittent clouds of the evening. Bill Pennington, New York Times, "Dustin Johnson Pulls Away in Round 2 of the U.S. Open," 15 June 2018 Mary relished the experience of the effect of light: the radiant sun, the moon, the star lit sky on a clear night, Christmas lights, harbor lights, and Fireworks on the 4th. courant.com, "Mary T. Panatieri," 30 Apr. 2018 Handcrafted by Japanese artisans with cruelty-free nylon bristles and a sustainable hardwood birch handle, editorial makeup star Gucci Westman’s new foundation brush creates a radiant party-ready complexion. Zoe Ruffner, Vogue, "The Best Beauty Gifts Under $100 to Give Everyone on Your List," 19 Nov. 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

11 Jan 2019

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).


a person who helps groups work together

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