: involving, projecting, or providing for the worst possible circumstances or outcome of a given situation
a worst-case scenario

Examples of worst-case in a Sentence

Recent Examples on the Web
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When algorithms are deeply embedded in application logic, substitution is not a configuration change but can become a full rewrite in worst-case architectures​, turning what should be routine maintenance into an enterprise program. Maman Ibrahim, Forbes.com, 30 June 2026 In worst-case scenarios, application of expired makeup could lead to irritation, breakouts, or eye infections. Louise Parks, Martha Stewart, 27 June 2026 But Tovar still envisioned a worst-case scenario with her ace at the plate. Michael Osipoff, Chicago Tribune, 25 June 2026 In a worst-case scenario, the conflict could resume, generating another big price spike. John Cassidy, New Yorker, 23 June 2026 See All Example Sentences for worst-case

Word History

First Known Use

1964, in the meaning defined above

Time Traveler
The first known use of worst-case was in 1964

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Cite this Entry

“Worst-case.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/worst-case. Accessed 5 Jul. 2026.

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