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

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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 Google says Nest Thermostat works with most home heating and cooling systems, including gas, electric, forced air, heat pump, radiant, oil, hot water, solar and geothermal systems. Marc Saltzman, USA TODAY, "Tech can help trim your utility bills, which may be on the rise amid coronavirus shutdown," 25 Apr. 2020 Speaking of Leia, the late Carrie Fisher is radiant as the iconic princess. Joey Morona, cleveland, "Star Wars: The Rise of Skywalker: J.J. Abrams restores balance to his galaxy in saga’s final episode," 18 Dec. 2019 But when a smile spreads across actress Rachel Finley’s face, Lena is radiant. Matthew J. Palm, orlandosentinel.com, "‘Boesman and Lena’: Uncomfortable? Yes. Compelling? Also, yes | Review," 5 Nov. 2019 Infused with real silk extract and a trio of anti-aging superfoods, the radiant Silk Peony cream is a must-have for hydrated, youthful eyes. Hillary Maglin, Travel + Leisure, "13 Hydrating Eye Creams to Get Your Skin Through Quarantine," 26 Apr. 2020 This tool promises to leave your skin looking radiant. Katey Clifford, oregonlive, "Candles, oils, blankets: Relaxing products to help relieve stress," 23 Apr. 2020 Shoppers of all ages rave about the effects of this gentle peel, affirming the 28-day treatment led to everything from radiant skin to smaller pores. Braelyn Wood, Health.com, "This At-Home Facial Peel Tackles Wrinkles and Dark Spots for More Radiant Skin," 13 Apr. 2020 Dressed in a radiant pink shirt and gray pants in Stevenson Park earlier this week, there was just something reassuring and calming about this individual. Robert Avery, Houston Chronicle, "Stevenson Park’s peacefulness enhanced by the plant-watering woman," 2 Apr. 2020 This word does a great job of conveying the radiant splendor of God. Melissa Mohr, The Christian Science Monitor, "Ugly-sounding words can describe beautiful things," 2 Apr. 2020 Recent Examples on the Web: Noun Both radiants are south of the Pleiades star cluster and the constellation Taurus the Bill. Leada Gore | Lgore@al.com, al, "Taurid meteor shower 2019:How to see shooting stars this week," 5 Nov. 2019

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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Time Traveler for radiant

Time Traveler

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

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Statistics for radiant

Last Updated

16 May 2020

Cite this Entry

“Radiant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiant. Accessed 27 May. 2020.

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More Definitions for radiant


How to pronounce radiant (audio)

English Language Learners Definition of radiant

: having or showing an attractive quality of happiness, love, health, etc.
: bright and shining
technical : sent out from something in rays or waves that you cannot see


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

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