See flutter in Webster's New World Roget's A-Z Thesaurus II
verb
To move or cause to move about while being fixed at one edge:
flap, fly, wave. See repetitionTo move through the air with or as if with wings:
flap, flit, flitter, fly, sail, wing. See moveTo move quickly, lightly, and irregularly like a bird in flight:
flicker, flit, flitter, hover. See repetitionTo move (one's arms or wings, for example) up and down:
beat, flap, flitter, flop, waggle, wave. See repetition
noun
A state of discomposure:
agitation, dither, fluster, perturbation, tumult, turmoil, upset. (Informal) lather, stew. See calm
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