ruthless Meaning in the Cambridge English Dictionary
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Meaning of “ruthless” in the English Dictionary

"ruthless" in British English

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ruthlessadjective

uk   us   /ˈruːθ.ləs/
C2 not ​thinking or ​worrying about any ​paincaused to ​others; ​cruel: ruthless ​ambition a ruthless ​dictator Some ​peoplebelieve that to ​succeed in this ​world you have to be ruthless.
ruthlessly
adverb uk   us   /-li/
She ruthlessly ​pursued her ​ambition, ​letting nothing get in her way.
ruthlessness
noun [U] uk   us   /-nəs/
(Definition of ruthless from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"ruthless" in American English

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ruthlessadjective

 us   /ˈruθ·ləs/
cruel, or ​determined to ​succeed without ​caring about ​others: a ruthless ​ruler To ​competeabroadrequires ruthless cost-cutting at ​home.
(Definition of ruthless from the Cambridge Academic Content Dictionary © Cambridge University Press)
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