- present participle of challenge.
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.
At 27, and with potentially two or even three more tournaments to come, the France superstar could well be challenging at the top of this list by the time he retires.
From BBC • Jun. 11, 2026
"That is very challenging, but this unfamiliar data is also very helpful for the robot's growth."
From Barron's • Jun. 11, 2026
Frontier artificial intelligence models are challenging some longstanding beliefs about how to make organizations secure.
From The Wall Street Journal • Jun. 10, 2026
As life gradually expanded from deeper waters into shallower marine environments, conditions became much more challenging.
From Science Daily • Jun. 10, 2026
Joon stands with his hands on his hips like he is challenging the kid to do better.
From "A Step from Heaven" by An Na
Vocabulary lists containing challenging
Academic Vocabulary Toolkit 1, Words 11-20
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Towers Falling
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Persuasive and Assertive Tones
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
