cold-blood·​ed | \ ˈkōl(d)-ˈblə-dəd How to pronounce cold-blooded (audio) \

Definition of cold-blooded

1a : done or acting without consideration, compunction, or clemency cold-blooded murder
b : matter-of-fact, emotionless a cold-blooded assessment
2 : having cold blood specifically : having a body temperature not internally regulated but approximating that of the environment
3 or coldblood \ ˈkōl(d)-​ˈbləd How to pronounce coldblood (audio) \ : of mixed or inferior breeding
4 : noticeably sensitive to cold

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Other Words from cold-blooded

cold-bloodedly adverb
cold-bloodedness noun

First Known Use of cold-blooded

1606, in the meaning defined at sense 2

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The first known use of cold-blooded was in 1606

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Cite this Entry

“Cold-blooded.” Dictionary, Merriam-Webster, Accessed 28 May. 2020.

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How to pronounce cold-blooded (audio)

English Language Learners Definition of cold-blooded

: showing no sympathy or mercy : done in a planned way without emotion
: based on facts : not affected by emotions
biology : having cold blood : having a body temperature that is similar to the temperature of the environment


cold-blood·​ed | \ ˈkōld-ˈblə-dəd \

Kids Definition of cold-blooded

1 : having a body temperature that varies with the temperature of the environment Frogs are cold-blooded animals.
2 : lacking or showing a lack of normal human feelings a cold-blooded criminal


cold-blood·​ed | \ ˈkōl(d)-ˈbləd-əd How to pronounce cold-blooded (audio) \

Medical Definition of cold-blooded

: having a body temperature not internally regulated but approximating that of the environment : poikilothermic cold-blooded amphibians and reptiles

Other Words from cold-blooded

cold-bloodedness noun

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