aflutter

/əˈflʌtər/
adverb
  1. In a fluttering manner; with quick, light movement.
    • The curtains blew aflutter at the open window.
    • The bird's feathers moved aflutter as it preened.
    • Confetti fell aflutter over the crowd.
adjective
  1. In a state of nervous excitement or agitation.
    • The bride was all aflutter before the ceremony.
    • News of the surprise visit set the whole office aflutter.
    • He felt aflutter with anticipation as he waited for the results.
  2. Fluttering; moving with quick, light, irregular motions.
    • Flags hung aflutter in the strong wind.
    • The butterfly's wings were aflutter in the sunlight.
    • Leaves were aflutter as the breeze passed through the trees.
Antonyms
What does "aflutter" mean? | whatsthatwordmean | whatsthatwordmean