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.
Researchers on Sunday presented early results of clinical trials of two experimental drugs targeting a gene called KRAS, one of the most common and challenging drivers of human cancers.
From The Wall Street Journal • Apr. 19, 2026
They used a deliberately challenging approach, where questions were phrased in a way that invited misinformation, to see how robust the AI's were.
From BBC • Apr. 18, 2026
Driving is “a very challenging, full-time job,” he said.
From Los Angeles Times • Apr. 18, 2026
Because all dystonias originate in the brain, treatments are challenging.
From Slate • Apr. 18, 2026
Maybe if I’d trained more, spent longer hours practicing in the gym, mastered more challenging skills—like the Amanar—I might be feeling less scared.
From "Courage to Soar" by Simone Biles
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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