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 might seem that adding dimensions would make an already difficult problem even more complicated.
From Science Daily ● Aug. 30, 2026
At first, Claude was reluctant to take on such a difficult problem.
From The Wall Street Journal ● Aug. 15, 2026
“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
When I’d finished, he laced his fingers as if he were contemplating a difficult problem.
From "Educated" by Tara Westover
