unforeseen

adjective

un·​fore·​seen ˌən-fȯr-ˈsēn How to pronounce unforeseen (audio)
: not anticipated or expected : not foreseen : unexpected
an unforeseen delay
unforeseen consequences

Examples of unforeseen in a Sentence

there are almost always unforeseen consequences for any major endeavor unforeseen problems delayed the project beyond its deadline
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
An offseason roster shakeup could alter the clubhouse’s look and feel in unforeseen ways. Charlotte Varnes, New York Times, 8 Oct. 2025 Veronica, however, admits that getting used to her newer figure has led to unforeseen emotional roadblocks. Michelle Lee, PEOPLE, 7 Oct. 2025 The piling on of hurdles, unforeseen challenges, and calamities is almost ridiculous. Frederick Dreier, Outside, 7 Oct. 2025 That way, if the weather or unforeseen forces create a kink in your plans, warm and dry shelter is nearby. Lynn O'Rourke Hayes, Boston Herald, 28 Sep. 2025 See All Example Sentences for unforeseen

Word History

First Known Use

1651, in the meaning defined above

Time Traveler
The first known use of unforeseen was in 1651

Browse Nearby Words

Cite this Entry

“Unforeseen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unforeseen. Accessed 9 Oct. 2025.

More from Merriam-Webster on unforeseen

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!