• synonyms


  1. not declining in strength or vigour; tireless
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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

Related Words for unflagging

unrelenting, unceasing, indefatigable, unfailing, inexhaustible, unremitting, staunch, tireless, active, assiduous, constant, diligent, dynamic, energetic, fixed, persevering, steady, unfaltering, untiring, unwearied

Examples from the Web for unflagging

Contemporary Examples of unflagging

Historical Examples of unflagging

  • Was this, then, the end of his six years of unflagging devotion?

  • Here was a woman of insistent, unflagging, unending activity.


    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.

Word Origin and History for unflagging


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

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Online Etymology Dictionary, © 2010 Douglas Harper