vac·il·la·tion /ˌvæsəˈleʃən/
游移不定,躊躇,不果斷
Vac·il·la·tion n.
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.
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vacillation
n 1: indecision in speech or action [syn: hesitation, wavering]
2: changing location by moving back and forth [syn: swing, swinging]