Definition of radiant adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈreɪdiənt//
    ; NAmE NAmE//ˈreɪdiənt//
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  1. 1showing great happiness, love or health a radiant smile The bride looked radiant. radiant with something She was radiant with health. See related entries: Love
  2. 2giving a warm bright light The sun was radiant in a clear blue sky.
  3. 3[only before noun] (specialist) sent out in rays from a central point the radiant heat/energy of the sun
  4. Word Originlate Middle English: from Latin radiant- ‘emitting rays’, from the verb radiare, from radius ‘ray, spoke’.
See the Oxford Advanced American Dictionary entry: radiant