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have stumped
  • present perfect of stump.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The cases have stumped experts, who are investigating a variety of potential causes.

From New York Times • Jun. 1, 2022

The phrase special, or enhanced, combat duty appears to have stumped the Pentagon.

From Reuters • Feb. 28, 2022

But the remaining few that have stumped investigators may hold the best chance for ultimately attributing the syndrome to a specific device or country.

From Washington Post • Feb. 2, 2022

Steel predicted Biden and McConnell, two former colleagues, can find “common ground” on infrastructure and immigration — policy areas that have stumped multiple administrations.

From Seattle Times • Jan. 1, 2021

"If I'd been alone the invisible wall surely would have stumped me."

From Glinda of Oz by Baum, L. Frank (Lyman Frank)