See falter in Webster's New World Roget's A-Z Thesaurus II
verb
To be irresolute in acting or doing:
dither, halt2, hesitate, pause, shilly-shally, stagger, vacillate, waver, wobble. See decideTo walk unsteadily:
lurch, reel, stagger, stumble, teeter, totter, weave, wobble. See move
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