challenge
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.
Lead author Andrew Bean said the analysis illustrated how interacting with humans poses a challenge "even for top" AI models.
From BBC
He predicted the British driver's team-mate Oscar Piastri would again pose a strong challenge, having led the championship for much of last season only to fade in the final part of the year.
From BBC
“Further, we observe continued challenges and cost increases in bringing online new uranium supply and continued inflation pressures in key producing regions” including Canada, it says.
Nithya Raman’s decision to run for mayor represents a significant challenge to incumbent Karen Bass because the incumbent appears vulnerable across multiple fronts.
From Los Angeles Times
It said better stewardship of nature is not a distant environmental issue but a core challenge for every boardroom.
From BBC
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.