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.
But making these programs a reality is challenging.
From MarketWatch
The trails here are challenging but worthy adventures for experienced hikers to consider.
From Los Angeles Times
That increased sense of reward can help children stick with both challenging and repetitive activities.
From Science Daily
"This is an early indicator that the retail sector may well end the year on a positive note given the challenging times faced at the beginning of the year," she said.
From BBC
“In the Arctic, if you have very challenging weather conditions and no line of sight, then jamming can be critical,” Andreassen said.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.