: 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.
The modern system of succession was designed to anticipate worst-case scenarios—but only in fragments. Vivian Salama, The Atlantic, 27 Apr. 2026 At the time, White House and Pentagon officials insisted that the assessment — particularly the longer end timeframe, which some consider a worst-case scenario — was not being seriously considered. Charbel Mallo, CNN Money, 22 Apr. 2026 Within just a few weeks, the stock slid from around $130 to near $100 as fears mounted, but has since rebounded sharply as those worst-case scenarios failed to materialize. Alexa Lomonaco, CNBC, 21 Apr. 2026 If anxiety starts narrating worst-case scenarios, step away from the noise and look at the facts. Valerie Mesa, PEOPLE, 20 Apr. 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 May. 2026.

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