vacillateverb · Level 1 SAT1to sway from one side to anotherHe vacillated between accepting the offer and holding out for better terms, losing the opportunity entirely.ModuleLevel 1Registerargument, commonCollectionCollection 067SAT Core planAlso in Collection 067petulance, pique, enervate, purport, ostracize, upbraid, subsist, satiate and 1 more