challenging
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.
Tessellations in hyperbolic spaces are especially striking but also especially challenging to analyze.
From Science Daily
It was a challenging day for the S&P 500 and the Dow Jones Industrial Average, which racked up their largest losses of 2026.
From Barron's
It was a challenging day for the S&P 500 and the Dow Jones Industrial Average, which racked up their largest losses of 2026.
From Barron's
Greenland possesses significant rare earth element deposits and an estimated 13 billion barrels of oil, but extraction of those resources would be challenging.
From Barron's
Greenland possesses significant rare earth element deposits and an estimated 13 billion barrels of oil, but extraction of those resources would be challenging.
From Barron's
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.