The customer vacillated between the red and blue dress before finally choosing the blue one.
vacillate on a decision
Frequency:
65
%
The committee vacillated on whether to approve the budget.
vacillate in opinion
Frequency:
60
%
He vacillated in his opinion on the matter, unable to make up his mind.
Idiomatic Expressions for vacillate
Phrase: vacillate on a decision
Meaning: to keep changing one's mind about a decision
Usage: He vacillated on whether to accept the job offer or not, causing confusion for the hiring manager.