: 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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The present market valuation exhibits significant pessimism, accounting for worst-case scenarios and intensely focusing on weaknesses in the DIY tax arena, while also addressing broader concerns of AI disruption in fundamental bookkeeping tasks. Trefis Team, Forbes.com, 22 May 2026 Oil prices could approach $200 per barrel in a worst-case scenario where Hormuz remains closed through the end of the year, according to an analysis published by Wood Mackenzie on Wednesday. Spencer Kimball, CNBC, 20 May 2026 Nuclear’s worst-case scenarios feel abstract to most people, and its had decades to normalize. Catherina Gioino, Fortune, 15 May 2026 At the start of the conflict, Serrato said her 11-year-old daughter Laylah had difficulty concentrating in class, consumed with worst-case scenarios. Juliana Kim, NPR, 13 May 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 26 May. 2026.

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