NSW Selective & Scholarship
Vacillation
noun/vas-uh-LAY-shuhn/
The act of wavering back and forth without being able to decide.
In contextHis vacillation over which sport to play frustrated the whole family.
Remember it
'Vacillation' wobbles like 'oscillation'; both swing back and forth.
Use it well
Use for repeated back-and-forth indecision, not a single moment of doubt.