in cold blood

US /ɪn koʊld blʌd/
UK /ɪn koʊld blʌd/
"in cold blood" picture
1.

without emotion or pity; deliberately and cruelly

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The crime was committed in cold blood, showing no remorse.
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How could someone kill an innocent person in cold blood?
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cold-bloodedcoldbloodmake someone's blood run coldcommon coldcold warcold-calling