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.
The researchers identified a previously unrecognized role for the MHC class I pathway in immune responses driven by CD4+ T cells, challenging the traditional view that these pathways operate separately.
From Science Daily • Jun. 4, 2026
Mountain rescue, coastguard, drone pilots, and search and rescue dog teams took part in the operation in challenging winter conditions.
From BBC • Jun. 4, 2026
"It had been a long summit push. What should have been five days to the summit and back took us 11 days, that's how challenging the conditions were," said Thrall.
From Barron's • Jun. 4, 2026
Women’s Open, wants Riviera Country Club to be an challenging test and a showcase for women’s golf.
From Los Angeles Times • Jun. 3, 2026
The men of the 10th Leningrad turned out to be friendly and sympathetic, and were assigned to help train the 587th in battle techniques in their challenging, powerful Pe-2 dive-bombers.
From "A Thousand Sisters" by Elizabeth Wein
Vocabulary lists containing challenging
Academic Vocabulary Toolkit 1, Words 11-20
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Towers Falling
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Persuasive and Assertive Tones
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