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.
Detecting light and radiation is essential across the electromagnetic spectrum, but some regions remain especially challenging.
From Science Daily • May 31, 2026
Rights groups in Zambia and a lawmaker in Kenya have also filed suits challenging their nations’ talks with the U.S., arguing there is a lack of transparency.
From The Wall Street Journal • May 31, 2026
To continue it looks increasingly challenging, but to end it is also fraught with danger.
From BBC • May 30, 2026
Villanueva is one of seven candidates challenging Luna’s hopes for a second term in Tuesday’s primary.
From Los Angeles Times • May 28, 2026
In those challenging times, the animals couldn’t afford to lose any fresh water.
From "The Wild Robot Protects" by Peter Brown
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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