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.
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
"That most difficult problem is that each nuclear power plant is in a different location and will need its own safety protocol and infrastructure," Yamagiwa said.
From BBC ● Feb. 18, 2025
It ticked in a satisfied and self-important way, as if it had managed to solve some difficult problem.
From "Raymie Nightingale" by Kate DiCamillo
