vacillation

vacillation [ˌvæsiˈleiʃən] n.

1. ■ 摇摆, 波动, 动摇

2. ■ 犹豫不决; 优柔寡断

His constant vacillation made him an unfit administrator. 他经常优柔寡断, 这使他不适合当行政官员。