worst nightmare
noun
: the thing someone fears most
Losing a child is every parent's worst nightmare.
Examples of worst nightmare in a Sentence
Recent Examples on the Web
Navigating every parent's worst nightmare, even the basics of everyday life were beyond her.
—
Jessica Guynn, USA Today, 14 June 2026
King Hiss Beneath his human exterior, King Hiss (later King Hssss) was an ophidiophobe's worst nightmare.
—Richard Edwards, Space.com, 4 June 2026
An encounter with a skunk is every pet owner's worst nightmare.
—Rae Ford, Martha Stewart, 23 May 2026
My worst nightmare was like a Jonathan and Rizo situation.
—Dalton Ross, Entertainment Weekly, 21 May 2026
See All Example Sentences for worst nightmare
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Jessica Guynn, USA Today, 14 June 2026
King Hiss Beneath his human exterior, King Hiss (later King Hssss) was an ophidiophobe's worst nightmare.
—Richard Edwards, Space.com, 4 June 2026
An encounter with a skunk is every pet owner's worst nightmare.
—Rae Ford, Martha Stewart, 23 May 2026
My worst nightmare was like a Jonathan and Rizo situation.
—Dalton Ross, Entertainment Weekly, 21 May 2026
See All Example Sentences for worst nightmare
Cite this Entry
“Worst nightmare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/worst%20nightmare. Accessed 22 Jun. 2026.
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