As soon as Major Danby began to cry, Colonel Moodus, who had been vacillating wretchedly on the sidelines, could restrain himself no longer and stepped out diffidently toward General Dreedle with a sickly air of self-sacrifice.
He vacillated helplessly for a few seconds and then spun himself around and fled inside the nearest of the hallways in search of Yossarian and Dunbar, hoping to catch them in time and bring them back to the rescue with news of the remarkable clash between the old man and Major — de Coverley.
There are no more uses of "vacillate" in the book.
Show samples from other sources
She was determined and did not vacillate in the least.