challenging
Americanadjective
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offering a challenge; testing one's ability, endurance, etc.
a challenging course;
a challenging game.
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stimulating, interesting, and thought-provoking.
a challenging suggestion.
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provocative; intriguing.
a challenging smile.
adjective
Other Word Forms
Derived Forms
Etymology
Origin of challenging
First recorded in 1300–50; Middle English, as a gerund; 1835–45 for sense of "testing one's ability"; see challenge ( def. ), -ing 2 ( def. )
Explanation
If something is challenging, you better bring your "A game." It isn't going to be easy but you will get to test your skills as you push yourself, like completing a challenging crossword puzzle or a challenging hike up a mountain. Another meaning of challenging is "causing to question values or assumptions," like a challenging movie that makes you re-evaluate your attitude about something. In other words, it challenges what you believe. People sometimes use challenging as a polite — and far more positive — substitute for troublesome or problematic, as in, "This challenging situation will require everyone's patience."
Vocabulary lists containing challenging
Academic Vocabulary Toolkit 1, Words 11-20
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Towers Falling
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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.
Megan, even with the title “All Her Fault,” you’re challenging viewers to think about our own gender bias and how we view things.
From Los Angeles Times • Jun. 16, 2026
"I have a lot of challenging memories about the immediate newborn period... I've got a lot of anxiety about that time."
From BBC • Jun. 15, 2026
California Attorney General Rob Bonta has been reviewing Paramount’s bid and is leaning toward challenging it, The Wall Street Journal reported last month.
From The Wall Street Journal • Jun. 15, 2026
For many Americans, middle age is becoming more challenging than it was for previous generations.
From Science Daily • Jun. 14, 2026
Sending Margaret away to school had been challenging, emotionally and financially.
From "Reaching for the Moon" by Katherine Johnson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
