Vac′il‐la″tion (?), n. [L. vacillatio: cf. F. vacillation.] 1. The act of vacillating; a moving one way and the other; a wavering.
His vacillations, always exhibited most pitiably in emergencies. Macaulay.
2. Unsteadiness of purpose; changeableness.
There is a vacillation, or an alternation of knowledge and doubt. Jer. Taylor.