: 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.
In a worst-case scenario, such vulnerabilities could have allowed attackers to intercept sensitive data or even seize control of spacecraft, including those involved in flagship Mars missions. Sharmila Kuthunur, Space.com, 30 Jan. 2026 In these cases, filing for bankruptcy begins to look less like a worst-case scenario and more like a potential lifeline. Angelica Leicht, CBS News, 29 Jan. 2026 Her team worked to rule out causes like multiple sclerosis or cancer, which Rusty says seemed like worst-case scenarios at the time. Zoey Lyttle, PEOPLE, 26 Jan. 2026 The streaming giant will implement a 10-second delay to ensure viewers do not witness a tragedy in a worst-case scenario, according to the Hollywood Reporter. Alex Wigglesworth, Los Angeles Times, 23 Jan. 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 1 Feb. 2026.

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