What is another word for at fell swoop?
Pronunciation: [at fˈɛl swˈuːp] (IPA) 
"At fell swoop" is an idiomatic expression commonly used to describe a sudden and swift action. It can also be used to signify an event or occurrence that happens in one swift move. Synonyms for "at fell swoop" include; immediately, instantly, promptly, all at once, suddenly, in one go, in one fell swoop, right away, without warning, and abruptly. All these words convey a sense of immediacy and quickness, with a sudden and unexpected aspect to them. Using any of these synonyms in place of "at fell swoop" will add a more varied lexical and linguistic pattern to your writing or conversation.
