Vāc'il-lāte, v. i.

v. i. [imp. & p. p. VACILLATED; p. pr. & vb. n. VACILLATING.] [Lat. vacillare, vacillatum, It. vacillare, Pg. & Pr. vacillar, Sp. vacilar, Fr. vaciller.]

1. To move one way and the other; to reel or stagger; to waver.
2. To fluctuate in mind or opinion; to be unsteady or inconstant; to waver.

Syn.—To fluctuate; waver; stagger. See FLUCTUATE.