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Synonyms

all of a sudden

Idioms  
  1. Entirely without warning, abruptly, as in All of a sudden the lights went out. In Shakespeare's day the common phrase was of a sudden, the word all being added in the late 1600s. Also see all at once, def. 2.


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.

“It’s really a concern about a slippery slope. Do we start here with prescriptions, then all of a sudden, is it going to lead to diagnostic tests?” said John Whyte, chief executive of the AMA.

From The Wall Street Journal • Jun. 18, 2026

"I'd had a really bad day at work…and all of a sudden, all those worries just vanished. The only thing I was focused on was just being a dad," said Conor.

From BBC • Jun. 14, 2026

“We’ve been having this conversation for 50 years. Why is it all of a sudden a problem now?”

From The Wall Street Journal • Jun. 6, 2026

“You grew up watching a guy every day on TV for 10 years, and then all of a sudden, he’s a teammate. It’s pretty cool.”

From Los Angeles Times • May 23, 2026

Because all of a sudden, people could read.

From "The Mona Lisa Vanishes" by Nicholas Day

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