v. i. [ imp. & p. p. Vacillated p. pr. & vb. n. Vacillating. ] [ L. vacillare, vacillatum; cf. Skr. vañc. ] [ 1913 Webster ]
1. To move one way and the other; to reel or stagger; to waver. [ 1913 Webster ]
[ A spheroid ] is always liable to shift and vacillatefrom one axis to another. Paley. [ 1913 Webster ]
2. To fluctuate in mind or opinion; to be unsteady or inconstant; to waver. [ 1913 Webster ]
Syn. -- See Fluctuate. [ 1913 Webster ]