difficult problem
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.
“It’s a very difficult problem, and society as a whole is not investing enough money in infrastructure ... especially water infrastructure,” said Lucio Soibelman, a professor of civil and environmental engineering at USC.
From Los Angeles Times ● Jul. 25, 2026
“It’s a notoriously difficult problem for classical computers,” Chow explained.
From Barron's ● Jan. 29, 2026
Speaking to BBC Radio 4's Today Programme, head of the Metropolitan Police Sir Mark Rowley acknowledged the government had a "difficult problem to fix" on prison overcrowding.
From BBC ● May 28, 2025
If scientists could find a way to create specific mutations to break the protein interaction, it could be a lead on a future vaccine — but it is a difficult problem to solve, Shah said.
From Salon ● Feb. 3, 2025
When I’d finished, he laced his fingers as if he were contemplating a difficult problem.
From "Educated" by Tara Westover
