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unmerciful

[ uhn-mur-si-fuhl ]
/ ʌnˈmɜr sɪ fəl /
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adjective
merciless; relentless; severe; cruel; pitiless.
unsparingly great, extreme, or excessive, as amounts: to talk for an unmerciful length of time.
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Origin of unmerciful

First recorded in 1475–85; un-1 + merciful

OTHER WORDS FROM unmerciful

un·mer·ci·ful·ly, adverbun·mer·ci·ful·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use unmerciful in a sentence

British Dictionary definitions for unmerciful

unmerciful
/ (ʌnˈmɜːsɪfʊl) /

adjective
showing no mercy; relentless
extreme or excessive

Derived forms of unmerciful

unmercifully, adverbunmercifulness, noun
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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