cold–blood·ed 
/ˈkoʊldˈblʌdəd/ adjective
/ˈkoʊldˈblʌdəd/ adjective 1 [more cold–blooded; most cold–blooded] : showing no sympathy or mercy
▪ cold-blooded [=ruthless] murderers : done in a planned way without emotion ▪ a cold-blooded killing 2 [more cold–blooded; most cold–blooded] : based on facts : not affected by emotions
▪ A cold-blooded [=cold-eyed, dispassionate] assessment of the situation showed that we had to take harsh measures. 3 biology : having cold blood : having a body temperature that is similar to the temperature of the environment
▪ Reptiles are cold-blooded. — compare warm-blooded
▪ cold-blooded [=ruthless] murderers : done in a planned way without emotion ▪ a cold-blooded killing
▪ A cold-blooded [=cold-eyed, dispassionate] assessment of the situation showed that we had to take harsh measures.
▪ Reptiles are cold-blooded. — compare warm-blooded
— cold–blood·ed·ly adverb
— cold–blood·ed·ness noun [noncount]
