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
- 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.”
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
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.