worst nightmare

noun

: the thing someone fears most
Losing a child is every parent's worst nightmare.

Examples of worst nightmare in a Sentence

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All of this means a highly unpredictable world is the brain’s worst nightmare—and the uncertainty that results can quickly become toxic. — Maia Szalavitz, Scientific American, 20 Oct. 2026 To prepare for a scuba diver’s worst nightmare, Abrams earned the necessary certifications. — Brian Davids, HollywoodReporter, 16 Oct. 2026 What would have been an acrophobic’s worst nightmare was just a warmup for 5SOS, who kept the party going well into the night with CLUBSOS, their official Lollapalooza afterparty and inaugural DJ set. — Larisha Paul, Rolling Stone, 6 Oct. 2026 Every Dolphins fans’ worst nightmare came true when Achane went down with a knee injury in the opening drive of the first quarter. — Miami Herald, 27 Sep. 2026 See All Example Sentences for worst nightmare

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“Worst nightmare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/worst%20nightmare. Accessed 25 Oct. 2026.

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