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.
Building Robust And Adaptive Systems Even with the best prompts, ambiguity can arise if the LLM encounters unforeseen scenarios or lacks specific information. Pradeep Kumar Muthukamatchi, Forbes.com, 15 July 2025 Weather or unforeseen circumstances could postpone either closure, according to the city. arkansasonline.com, 9 July 2025 But the team’s hot streak has come on the back of unforeseen contributions from the likes of Loperfido. Mitch Bannon, New York Times, 8 July 2025 Barring any unforeseen circumstances, Cleveland is set to become a seller over the next few weeks. Drew Vonscio, MSNBC Newsweek, 7 July 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

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Cite this Entry

“Unforeseen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unforeseen. Accessed 19 Jul. 2025.

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