Definition of radiant in English:


Syllabification: ra·di·ant
Pronunciation: /ˈrādēənt


  • 1Sending out light; shining or glowing brightly: a bird with radiant green and red plumage
    More example sentences
    • The bright light was radiant with the morning rays of red, orange, pink, and gold, reflecting brilliantly on the glasslike water.
    • Karya finally awoke to a weak light, nothing like the radiant shine in her now lost home.
    • The contrast is brought across through imaginative use of light and radiant colours.
    shining, bright, illuminated, brilliant, gleaming, glowing, ablaze, luminous, luminescent, lustrous, incandescent, dazzling, shimmering, resplendent
    archaic splendent
  • 1.1(Of a person or their expression) clearly emanating great joy, love, or health: she gave him a radiant smile
    More example sentences
    • She was radiant and she smiled the most when she was with him.
    • The sight of my mother, my beautiful, radiant mother, was more than I could handle while pregnant and without my eldest daughter.
    • I'm fond of Mrs. Johnson, who has a gentle southern accent and a radiant expression.
  • 1.2(Of an emotion or quality) emanating powerfully from someone or something; very intense or conspicuous: he praised her radiant self-confidence
    More example sentences
    • Its root cause - a sense of identity narrowly defined by the physical body and self-limiting thoughts and emotions - is transformed into radiant equanimity.
    • Emanating radiant compassion toward all of her devotees, Ammachi is understood to be a manifestation of the Great Goddess on earth - a living Avatar.
    • Rebecca still had that radiant confidence that we'd uncovered within her a couple of weeks ago and I couldn't help but feel proud knowing that we'd helped her to achieve it.
  • 2 [attributive] (Of heat) transmitted by radiation, rather than conduction or convection.
    More example sentences
    • Thermal energy from infrared, radiant heat sources has been used to treat chronic human wounds with decreasing frequency during the past 25 years.
    • In the tandoor, the breads (necessarily flat in shape) are slapped onto the vertical wall, where they bake quite quickly by a combination of radiant heat and convection.
    • There are many forms of energy, each of which can be classified into three categories: radiant energy, kinetic energy, and potential energy.
  • 2.1(Of an appliance) designed to emit radiant energy, especially for cooking or heating.
    More example sentences
    • This is the Hydronic radiant heating system that saves huge energy as well as money on heating larger areas of your home/office environment.
    • A typical radiant heating and cooling system starts with a high-performance glazing system, integrated with light shelves and exterior shades as needed.
    • Consequently, incubator care is associated with less insensible water loss, and lower fluid requirements, than nursing infants in open cots under radiant heaters.


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  • A point or object from which light or heat radiates, especially a heating element in an electric or gas heater.



More example sentences
  • If only all nature, all humanity were bathed in a rosy glowing radiancy and life for the future seemed naught but buoyancy and light.
  • It was almost pure and absolute white, with delicate and slender curls and a shining radiancy that made my eyes widen.


More example sentences
  • He beams radiantly, reaches out to shake my hand, and says: ‘Welcome to Big Rock.’
  • Looking radiantly healthy - in contrast to her wan mien of recent months - she lucidly defended herself the interviewers tried to extract an apology from her.
  • Outwardly, Gina didn't seem troubled - she babysat for neighbors, wrote cute poems, and smiled radiantly for pictures.


late Middle English: from Latin radiant- 'emitting rays', from the verb radiare (see radiate).

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