4
question(verb, dispute, stick, challenge, doubt)
4
see-saw(verb, move, swing, fluctuate, lurch)
4
toss(verb, move, swing, fluctuate, evolution)
4
undulate(verb, move, twist, alter, swell)
4
wag(verb, move, swing, fluctuate, lurch)
4
weave(verb, move, shake, swing, rock)
3
alter(verb, move, change, reduce, turn)
3
balk(verb, stick, object, pause, shy)
3
be indecisive(verb, doubt, hesitate, falter, waver)
3
be uncertain(verb, dispute, challenge, doubt, question)
3
blow(verb, break, wind, fluctuate)
3
blow hot and cold(verb, expression, idiom, move, change)
3
bobble(pause, swing, hesitate, stumble, waver)
3
cavil(object, false, protest, swing, disagree)
3
dangle(verb, move, swing, hesitate, waver)
3
deviate(verb, move, change, remove, turn)
3
ebb and flow(verb, expression, idiom, change, alter)
3
flitter(verb, change, hover, changeableness)
3
hang back(verb, expression, delay, stay, pause)
3
hum and haw(verb, expression, idiom, doubt, hesitate)
11 years ago|11k views|share |citing 
APASmart Define. (2015). vacillate thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/vacillate/thesaurus/synonyms
ChicagoSmart Define. 2015. "vacillate thesaurus" https://smartdefine.org/vacillate/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, vacillate thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/vacillate/thesaurus/synonyms>.
MLASmart Define. "vacillate thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/vacillate/thesaurus/synonyms>