a. [ad. L. vacillant-, vacillans, pres. pple. of vacillāre: see next. So F. vacillant (14th c.).]
1. Uncertain, hesitating, wavering.
1521. Bradshaw’s St. Werburge, Ball. to St. Werburge, 2. With hert contrite accepte my supplicacion, Aydynge my fraylete and lyfe vacillaunt.
1662. H. More, Philos. Writ., Pref. Gen. (1712), p. v. Because the reason of Universal Nature, and of Man, ought to stand firm on all sides, and to be no where vacillant.
1901. Blackw. Mag., Nov., 715/1. The vacillant, magnanimous, simple-hearted Levin.
2. Ent. Unsteady; swaying readily.
1860. Mayne, Expos. Lex., 1319/1. Vacillans, applied to anthers when they are oblong, attached by the middle of their length, and mobile; vacillant.
