Vac"il*late (?), v. t. [imp. & p. p. Vacillated (?); p. pr. & vb. n. Vacillating.] [L. vacillare, vacillatum; cf. Skr. vaƱc.]

1. To move one way and the other; to reel or stagger; to waver.

[A spheroid] is always liable to shift and vacillatefrom one axis to another.

2. To fluctuate in mind or opinion; to be unsteady or inconstant; to waver.

Syn. -- See Fluctuate.