scintillantly

/ˈsɪntɪləntli/
adverb
  1. In a sparkling or glittering manner; with flashes of light.
    • The fireworks exploded scintillantly across the night sky.
    • The lake shimmered scintillantly under the midday sun.
    • Her eyes shone scintillantly as she told the exciting story.
Antonyms