unforeseen
Britishadjective
Explanation
Something unforeseen is something that could not be predicted and was not expected. It's a surprise. If something was foreseen, you saw it coming and it wasn't a surprise. Something unforeseen is the opposite: no one saw it coming. Accidents are usually unforeseen events: no one expects to get in a car or bike accident on a given day. Winning the lottery, since it's so unlikely, would be an unforeseen event. If something was unanticipated or out of the blue, it was unforeseen. Unforeseen events can be good or bad, but they’re all surprises.
Vocabulary lists containing unforeseen
Power Prefix: un-
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
World Without Fish
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Florida's B.E.S.T. Common Prefixes: un-
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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 is therefore important to learn from how Powell dealt with the unforeseen shocks of his tenure.
From Barron's • Jun. 2, 2026
While the broad move toward cord cutting and a la carte programming has put significant pressure on pay-TV providers, it has also created a plethora of unforeseen problems for streaming services.
From MarketWatch • May 28, 2026
The main cause was "an unforeseen change in the radio frequency environment occurring after take-off," Skymagic said, triggering some drones "to enact failsafe landing procedures in response to compromised positional accuracy".
From BBC • May 26, 2026
Still, he said, it’s possible some unforeseen event could occur that would allow Pratt to score an upset victory.
From Los Angeles Times • May 21, 2026
Alfred Cheetham, the third officer, found himself in conversation with some women who wondered about the dangers ahead, and about Shackleton’s ability to lead the men through unforeseen perils.
From "Shipwreck at the Bottom of the World" by Jennifer Armstrong
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.
