not declining in strength or vigour; tireless
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use unflagging in a sentence
It was his business acumen, his own unflagging zeal for the creative business solution, that had freed Sam to do this.How Martin Luther King Jr. Influenced Sam Cooke’s ‘A Change Is Gonna Come’ | Peter Guralnick | December 28, 2014 | THE DAILY BEAST
Often the reverie rolled on deep into the night, an unflagging, unredundant product of the raconteurial mind.The Stacks: Harold Conrad Was Many Things, But He Was Never, Ever Dull | Mark Jacobson | March 8, 2014 | THE DAILY BEAST
Perhaps no group has been as unflagging in its back of Israel than evangelicals in the U.S.
Last season he was a most devoted parent and looked after his family with unflagging care.The Red Cow and Her Friends | Peter McArthur
After all this exertion, he bore me with unflagging spirit into Lima, where we arrived at noon on the following day.
So awful was the pain that her mind seemed numbed; only an unflagging determination drove her on.Warrior of the Dawn | Howard Carleton Browne
A steady climb with unflagging zeal and singleness of purpose always win out.How to Succeed as an Inventor | Goodwin B. Smith
This work, as may be readily understood, demanded the most untiring vigilance and the most unflagging energy.The Naval History of the United States | Willis J. Abbot.