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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
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Examples from the Web for unflagging
Contemporary Examples
Historical Examples
  • Was this, then, the end of his six years of unflagging devotion?

    The Way of All Flesh Samuel Butler
  • Here was a woman of insistent, unflagging, unending activity.

    Ladies-In-Waiting Kate Douglas Wiggin
  • All that night and next day they wrought with unflagging energy at the pumps.

    Saved by the Lifeboat R.M. Ballantyne
  • Here and there were the prints of their clawed feet—the signs of their unflagging pursuit.

    The War Trail Mayne Reid
  • All boys will read his stories with eager and unflagging interest.

    With the Swamp Fox James Otis
  • He had a passion for athletics and was one of the Nines most unflagging rooters.

    Quarter-Back Bates Ralph Henry Barbour
  • His equipment was simple faith, definite purpose, and unflagging zeal.


    Sidney Allnutt
Word Origin and History for unflagging

1715, from un- (1) "not" + present participle of flag (v.). Related: Unflaggingly.

Online Etymology Dictionary, © 2010 Douglas Harper
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