fluttering

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the motion made by flapping up and down
• Syn:
flap, flapping, flutter
• Derivationally related forms:
flutter, flap (for: flapping), flap (for: flap)
• Hypernyms:
wave, undulation

• Từ đồng nghĩa / Synonyms:
  flap, flapping, fluttering, disturbance, disruption, commotion, hurly burly, to-do, hoo-ha, hoo-hah, kerfuffle, waver, flicker, bat, palpitate, flitter, quiver, flit, fleet, dart