" radiantly "

1: in a manner marked by the shining or reflecting of much light;

  * e.g., " ... under a radiantly clear sky, we raised our anchor and set off on a carefree cruise "

•  Synonyms : 

•  bright,

•  brightly,

•  brilliantly,

•  dazzlingly,

•  fulgently,

•  glowingly,

•  incandescently,

•  lambently,

•  luminously,

•  lustrously,

•  splendidly

•  Antonyms : 

•  dimly,

•  dully

1: having or being an outward sign of good feelings (as of love, confidence, or happiness);

  * e.g., " ... she left the interview with a radiant smile on her face, confident she had gotten the job "

•  Synonyms : 

•  aglow,

•  beaming,

•  bright,

•  glowing,

•  sunny

•  Antonyms : 

•  dim,

•  dull,

•  lackluster,

•  unbright,

•  unbrilliant

2: giving off or reflecting much light;

  * e.g., " ... from the plane we could see the statehouse's radiant gold dome "

•  Synonyms : 

•  beaming,

•  bedazzling,

•  bright,

•  brilliant,

•  candescent,

•  clear,

•  dazzling,

•  effulgent,

•  fulgent,

•  glowing,

•  incandescent,

•  lambent,

•  lucent,

•  lucid,

•  luminous,

•  lustrous,

•  refulgent,

•  sheeny,

•  shining,

•  shiny,

•  splendid

•  Antonyms : 

• (N/A)