His vacillations, or an alternation of knowledge and doubt.
Jer. Taylor.
Vac"il*la*to*ry (?), a. Inclined to vacillate; wavering; irresolute.
Hawthorne.
Vac"u*ate (?), v. t. [L. vacuatus, p. p. of vacuare to empty, from
vacuus empty. See Vacant.] To make void, or empty. [R.]