radiantra‧di‧ant /ˈreɪdiənt/ adjective 
She looked radiant in a white silk dress. a radiant smileradiant with They were both radiant with happiness.2[only before noun] literary very bright: a lovely day with clear blue skies and radiant sun3[only before noun] technical radiant heat or energy is sent out in the form of waves—radiantly adverb: She looked radiantly beautiful.
WORD ORIGINradiant
Origin:
1400-1500 Latin present pasticiple of radiare; ➔ RADIATEEXAMPLES FROM OTHER DICTIONARIES
- radiant rubies and diamonds
- a radiant bride
- He was radiant with excitement when he came off the stage.
- She announced, with a radiant smile, that she was going to have a baby.
- She looked at him with radiant eyes.
- But Gabby was so healthy and radiant and strong.
- For years and years they crossed rivers and oceans to find the Simorgh, that fabulous creature, radiant and dazzling.
- Her face tipped up, radiant.
- Photographs showed it to consist of twenty or more radiant pieces in a straight line, embedded inside an extensive bright cloud.
- She looked a picture, radiant, all in white.
- They were radiant when they returned.
- With each step, they are becoming more and more radiant with light.
Longman Language Activatorvery happy because something good has happened
· When she saw the new car, she was delighted.delighted about · His parents were absolutely delighted about the baby.delighted at · Andrea was delighted at the chance to go to the Bolshoi ballet.delighted to hear/see/learn/be etc · I was delighted to hear you were getting married.delighted (that) · We are delighted that the negotiations have been completed successfully.
very happy and excited about something that has happened: · You should go for a visit - my parents would be thrilled.thrilled with: · Louise is thrilled with the changes she has seen in her son's behavior.thrilled at/by: · She was thrilled at the possibility of being sent to Europe.thrilled (that): · My mother's thrilled that the new house is so close to the park.thrilled to do something: · She was thrilled to have her picture taken with Mel Gibson.thrilled to bits (=very thrilled): · We were thrilled to bits when our daughter appeared on TV.
to feel extremely happy and confident because you are very successful or because something very good has happened to you: · Since the baby came Anna's been on top of the world.· After Mark got the promotion, he was sitting on top of the world.
British informal to be very happy about something good that has happened, especially something that makes you proud of yourself: · "How does it feel to have scored the winning goal?" "Over the moon, Brian."· When she discovered she'd got the job she was over the moon.
written very happy about something, especially a piece of good news: · Naturally I was overjoyed when I was offered the part in the play.overjoyed to see/hear/learn/be etc: · My parents were overjoyed to see my brother again.
extremely happy and excited about something: · The kids were ecstatic when we brought home the new video game system.ecstatic about/over: · Coggan said his clients were ecstatic about the judge's ruling.
use this about a crowd of people who are very happy about something, for example because they have won something: · The jubilant fans lifted the players up on their shoulders.
written very happy and excited for a short time, especially because you have achieved something that is important to you: · When I told her the news I thought she'd be elated.elated by/at/with: · Jeremy felt elated by this sudden and unexpected success.· Elated with the election victory, the crowd waved banners and chanted.
a group of people that are joyful are extremely happy, especially because they are celebrating a happy event - used especially in literature: · The streets of the city were filled with joyful crowds celebrating the New Year.· After their election victory, party members seemed positively joyful.
looking extremely happy: · He was radiant with excitement when he came off the stage.· She announced, with a radiant smile, that she was going to have a baby.
COLLOCATIONS FROM THE ENTRY a radiant smileCOLLOCATIONS FROM OTHER ENTRIES
1full of happiness and love, in a way that shows in your face and makes you look attractive: a radiant smile (=when you are very happy)· ‘I’m so pleased,’ she told him with a beaming smile.
COLLOCATIONS FROM THE CORPUSNOUN· By means of photosynthesis, plants convert the radiant energy of the sun into chemical energy.· Solar water heating Harnessing the natural radiant energy of the sun seems an obvious way to cut down on ever-increasing fuel bills.
· The nurse brought Michael a cup of tea and he thanked her, giving her one of his radiant smiles.· Courtiers who had come to expect her barely to acknowledge them were suddenly treated to radiant smiles and cheerful banter.· Passing the window, he saw Olivia Davenport, muffled in fur, approach Hoppy with a radiant smile.
She looked radiant in a white silk dress. a radiant smileradiant with They were both radiant with happiness.2[only before noun] literary very bright: a lovely day with clear blue skies and radiant sun3[only before noun] technical radiant heat or energy is sent out in the form of waves—radiantly adverb: She looked radiantly beautiful.