From The Collaborative International Dictionary of English v.0.44 [gcide]:
From WordNet (r) 2.0 [wn]:
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
104 Moby Thesaurus words for "vacillate": alternate, back and fill, bob, bobble, careen, change, changeable, chop and change, coggle, dally, dallying, dangle, demurring, dickey, dillydallying, dither, double-minded, doubtful, doubting, ebb and flow, eccentric, equivocate, erratic, falter, faltering, fickle, fiddle-faddle, flounder, fluctuant, fluctuate, fluctuating, flutter, go through phases, halt, halting, hang in doubt, hem and haw, hesitant, hesitate, hesitating, inconstant, indecisive, insecure, irresolute, librate, lurch, mercurial, nutate, oscillate, oscillating, pendulate, pendulous, pitch, reel, resonate, ring the changes, rock, roll, rootless, seesaw, shake, shaky, shift, shifting, shilly-shally, shilly-shallying, shuffle, stagger, stop to consider, swag, sway, swing, teeter, teeter-totter, tentative, tergiversate, think twice, timid, toss, totter, turn, uncertain, unresolved, unsettled, unstable, unsteady, unsure, vacillating, vacillatory, vary, vibrate, volatile, wag, waggle, wave, waver, wavering, wax and wane, weak, weak-kneed, whiffle, wigwag, wobble, wobbly
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