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ruthless

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adjective ruthless pronunciation in British English /ˈruːθləs/
  1. willing to make other people suffer so that you can achieve your aims

    a ruthless dictator/killer

    She showed a ruthless determination to succeed in her career.

    Synonyms and related words for this sense of ruthless

derived words

ruthlessly

 ruthless pronunciation in British English  adverb

Any form of protest is ruthlessly suppressed.

Synonyms and related words for this sense of ruthless

ruthlessness

noun [uncountable]

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