noun
Freq #179070
Meanings
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1
noun
indecision shown by repeatedly changing between opinions, choices, or courses of action
Months of vacillation ended when the council finally approved the proposal.
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2
noun
movement back and forth between positions or states
The instrument recorded a slight vacillation of the needle around its resting point.
Thesaurus
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Etymology
From Latin vacillatio ("swaying, wavering"), from vacillare ("to sway, stagger, be irresolute"). The physical image of movement from side to side produced the common figurative sense of indecision.