cold-blooded

adjective
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 cold-blooded (audio) \ : of mixed or inferior breeding
4 : noticeably sensitive to cold

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

Learn More About cold-blooded

Time Traveler for cold-blooded

Time Traveler

The first known use of cold-blooded was in 1606

See more words from the same year

Dictionary Entries Near cold-blooded

coldbar

cold-blooded

cold call

See More Nearby Entries 

Statistics for cold-blooded

Cite this Entry

“Cold-blooded.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cold-blooded. Accessed 28 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for cold-blooded

cold-blooded

adjective
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-blooded

adjective
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

More from Merriam-Webster on cold-blooded

Nglish: Translation of cold-blooded for Spanish Speakers

Britannica English: Translation of cold-blooded for Arabic Speakers

WORD OF THE DAY

Test Your Vocabulary

Eponyms: Words Named After People

True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!