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merciless

[ mur-si-lis ]
/ ˈmɜr sɪ lɪs /
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See synonyms for: merciless / mercilessly / mercilessness on Thesaurus.com

adjective

without mercy; having or showing no mercy; pitiless; cruel: a merciless critic.

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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of merciless

First recorded in 1300–50, merciless is from the Middle English word mercyles.See mercy, -less
mer·ci·less·ly, adverbmer·ci·less·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for merciless

merciless
/ (ˈmɜːsɪlɪs) /

adjective

without mercy; pitiless, cruel, or heartless
mercilessly, adverbmercilessness, 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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