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ruthless

[ rooth-lis ]
/ ˈruθ lɪs /
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See synonyms for: ruthless / ruthlessly / ruthlessness on Thesaurus.com

adjective

without pity or compassion; cruel; merciless: a ruthless tyrant.

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Origin of ruthless

Middle English word dating back to 1300–50; see origin at ruth, -less
See cruel.
ruth·less·ly, adverbruth·less·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for ruthless

ruthless
/ (ˈruːθlɪs) /

adjective

feeling or showing no mercy; hardhearted
ruthlessly, adverbruthlessness, 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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