unexpectedly
Americanadverb
Etymology
Origin of unexpectedly
Explanation
When something happens unexpectedly, it takes you by surprise because you weren’t prepared for it, like a surprise party or a sudden rainstorm on a sunny day. The adverb unexpectedly comes from the word unexpected, which means "something that wasn’t anticipated or planned." When something happens unexpectedly, it catches you off guard and can lead to a range of emotions, like surprise, excitement, or even confusion. For example, you might unexpectedly bump into an old friend at the grocery store or receive an unexpected gift in the mail, creating a memorable moment.
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.
When Mary shows up unexpectedly, asking Sam for the two things she won’t provide — forgiveness and a dress — the pair slowly find their bond regenerating, pulled back together by forces outside their control.
From Salon • Jun. 10, 2026
After the reward pathway was switched, the mice unexpectedly failed to receive the reward they anticipated.
From Science Daily • Jun. 8, 2026
Once stuck in the single-digits in public opinion polls with a handful of other Democratic candidates, Becerra rose quickly and unexpectedly following the political demise of former Rep. Eric Swalwell.
From Los Angeles Times • Jun. 6, 2026
Canada’s economy unexpectedly shrank for a second consecutive quarter as activity stalled at the start of the year, raising the likelihood the country dipped into a recession.
From The Wall Street Journal • Jun. 1, 2026
“I hope we never see you again,” Osh said to Officer Kelly, who unexpectedly smiled.
From "Beyond the Bright Sea" by Lauren Wolk
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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.