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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.


ˈchallenging 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

  • challengingly adverb
  • nonchallenging adjective
  • unchallenging adjective

Etymology

Origin of challenging

First recorded in 1300–50; Middle English, as a gerund; 1835–45 for sense of "testing one's ability"; challenge ( def. ), -ing 2 ( def. )

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.

“But it was challenging with its proximity to the ocean.”

From The Wall Street Journal

Thursday’s data release comes amid a challenging moment for UC as admission practices and college reliance on higher tuition from international students face criticism nationally.

From Los Angeles Times

Retail giants Tesco and Marks & Spencer both saw a bump in food sales over the vital Christmas period despite both mentioning a challenging economic backdrop.

From BBC

Tessellations in hyperbolic spaces are especially striking but also especially challenging to analyze.

From Science Daily

It was a challenging day for the S&P 500 and the Dow Jones Industrial Average, which racked up their largest losses of 2026.

From Barron's