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Synonyms

challenging

American  
[chal-in-jing] / ˈtʃæl ɪn dʒɪŋ /

adjective

  1. offering a challenge; testing one's ability, endurance, etc.

    a challenging course;

    a challenging game.

  2. stimulating, interesting, and thought-provoking.

    a challenging suggestion.

  3. provocative; intriguing.

    a challenging smile.


challenging British  
/ ˈtʃælɪndʒɪŋ /

adjective

  1. demanding or stimulating

    a challenging new job

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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."

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Vocabulary lists containing 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.

See Examples For:

"Gardaí are put in a really challenging situation dealing with such incidents."

From BBC Aug. 17, 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

But it becomes much more challenging as the state gets closer to its 2045 target, when the entire grid must be clean.

From Los Angeles Times 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

The college had a more extensive and challenging curriculum than did the one at Geauga Seminary.

From "Ambushed!" by Gail Jarrow

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