radiant /ˈreɪdiənt/ adj. 1 ~ (with sth) 喜气洋洋的；容光焕发的；面色红润的 showing great happiness, love or health a radiant smile 喜气洋洋的微笑 The bride looked radiant. 新娘看上去满面春风。 She was radiant with health. 她身体健康，容光焕发。 2 灿烂的；光芒四射的 giving a warm bright light The sun was radiant in a clear blue sky. 湛蓝的天空阳光灿烂。 3 [only before noun] (technical 术语) 辐射的；放射的 sent out in rays from a central point the radiant heat/energy of the sun 太阳的辐射热 / 辐射能 The earth would be a frozen ball if it were not for the radiant heat of the sun. 如果没有太阳辐射的热量，地球将是一个冰封的世界。 【派生词】radiantly adv. He smiled radiantly and embraced her... 他高兴地笑着拥抱了她。 She looks radiantly happy. 她看上去喜气洋洋。 拓展：英雄联盟中的装备 “辉耀美德” 英文名为 radiant virtue。 点点关注，解锁更多好词好句~