- present participle of challenge.
challenging
Americanadjective
-
offering a challenge; testing one's ability, endurance, etc.
a challenging course;
a challenging game.
-
stimulating, interesting, and thought-provoking.
a challenging suggestion.
-
provocative; intriguing.
a challenging smile.
adjective
Other Word 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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Persuasive and Assertive Tones
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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.
"These changes can also increase fatigue and make walking longer distances more challenging, while reducing the ability to recover from trips or slips -- a key factor in falls among older adults."
From Science Daily ● Aug. 16, 2026
Authorities described the conditions Sunday as still "challenging", but two of the fire fronts -- heading towards the localities of Jalhay and Monschau -- were now "under control", according to Interior Minister Bernard Quintin.
From Barron's ● Aug. 16, 2026
That’s in part because last month, Bare and other opponents filed two lawsuits challenging the data center, including one that required they sue their own neighbors.
From The Wall Street Journal ● Aug. 16, 2026
"It was an empowering decision that gave me more agency," the 37-year-old said, adding that the process was challenging.
From BBC ● Aug. 15, 2026
It was a challenging engagement—wet, hot, buggy, and fraught with fear for what might lie under each bush or beside each rock.
From Each Little Bird That Sings by Deborah Wiles
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.