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.
Walking on the Moon by 2030, building a lunar base, and then perhaps on to Mars: after 30 years of honing its expertise, China is challenging the United States' supremacy in spaceflight.
From Barron's
He said the discovery sparked a huge and "challenging" forensic search in an area of "dense undergrowth".
From BBC
Hedge funds are having a challenging time doing their job of hedging market risks.
From Barron's
Google is also challenging portions of the ruling that compel it to share search data with rivals.
From Barron's
The AI company is challenging its designation as a national security risk by the Pentagon.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
