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.
However, commercializing such technologies has been challenging, due to fiscal and regulatory hurdles in the healthcare industry.
A lawsuit challenging semiannual reporting is likely, but the SEC looks like it’s on solid legal ground, so companies probably will be able to opt into semiannual reporting starting next year, according to Seiberg.
From MarketWatch
Such a task would have uncertain prospects and would likely require the biggest and most technically challenging special-forces operation in history.
Katebe, however, acknowledged the challenges faced as a result of "cultural biases and the embarrassment that the victims normally face".
From BBC
He congratulated everyone working on the challenge for "an amazing team effort".
From BBC
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.