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English definition of “ruthless”

ruthless

adjective     /ˈruːθ.ləs/
C2 not thinking or worrying about any pain caused to others; cruel: ruthless ambition a ruthless dictator Some people believe that to succeed in this world you have to be ruthless.Unkind, cruel and unfeelingViolent or aggressiveTreating people or animals badlyInsults and abuse ruthlessly     /-li/ adverb She ruthlessly pursued her ambition, letting nothing get in her way.Unkind, cruel and unfeelingViolent or aggressiveTreating people or animals badlyInsults and abuse ruthlessness     /-nəs/ noun [U] Unkind, cruel and unfeelingViolent or aggressiveTreating people or animals badlyInsults and abuse
(Definition of ruthless adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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