English
Etymology
Latin vacill re, vacill t-, to waver.
Intransitive Verb
vac·il·lat·e (vacillated, vacillating, vacillates)
- To sway from one side to the other; oscillate.
- To swing indecisively from one course of action or opinion to another. (synonym: hesitiation )
- To be changeable or inconsistant in speech or action.
See Also
root of vacillation