: 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
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.
Once an aerial stunt’s been conceived of, in addition to planning how to execute it successfully, the team also needs to generate a worst-case scenario outcome. Sarah Shachat, IndieWire, 26 May 2025 The research by an international team of sea level and polar ice experts suggests that limiting warming to 2.7° Fahrenheit (1.5° Celsius) above the pre-industrial temperature—the Paris Climate Agreement’s target—isn’t low enough to prevent a worst-case meltdown of Earth’s polar ice sheets. ArsTechnica, 21 May 2025 Many of those worst-case humanitarian predictions have now become reality. Yara M. Asi, The Conversation, 21 May 2025 In worst-case scenarios, some states could even opt out of the program altogether, according to CBPP. Lorie Konish, CNBC, 21 May 2025 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 2 Jun. 2025.

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