<p><strong>Verb</strong></p><ul><li>(used without object) to waver in mind or opinion; be indecisive or irresolute: His tendency to vacillate makes him a poor leader</li><li>to sway unsteadily; waver; totter; stagger</li><li>to oscillate or fluctuate</li></ul><p><strong>Synonyms</strong></p><ul><li>hesitate</li><li>reel</li></ul>