all at once
Idioms-
All at the same time, as in We can't get inside all at once, so please wait your turn . [Late 1300s]
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Suddenly, unexpectedly, as in All at once the sky darkened . For a synonym, see all of a sudden .
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Like prey worn down by a persistent predator, participants don’t collapse all at once; they give up gradually until the fight leaves the market altogether.
From Barron's • Apr. 2, 2026
That’s when the specter of penalty shootouts past returned to haunt the Azzurri all at once.
From The Wall Street Journal • Apr. 1, 2026
Even if the market hasn’t crashed, this multi-week decline shows persistent selling pressure, not just a one-time shock, as investors gradually de-risk rather than panicking all at once.
From Salon • Apr. 1, 2026
When you eat a huge burrito, the biggest dilemma is whether you should save half for later or eat the beast all at once.
From Los Angeles Times • Feb. 19, 2026
Unlike the children, Penelope was feeling quite energetic all at once.
From "The Hidden Gallery" by Maryrose Wood
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.