v. 1 flap, flop, fluctuate, vacillate, wave, waver, oscillate The paper streamers fluttered in the breeze 2 flit, flicker, flitter, hover, dance; fuss We shall never get done if you keep fluttering about 3 tremble, shake, quiver, dither, jump, vibrate, twitch She is fluttering with anticipation waiting for the postman
n. 4 fluttering, flapping, flopping, fluctuation, fluctuating, vacillation, vacillating, wave, waving, oscillation, oscillating, trembling, quiver, quivering The slightest flutter of her fan communicates volumes 5 See fluster, 2.