Lacking feeling or emotion: a cold-blooded killer. (adjective)
Executed without feeling or emotion: a cold-blooded crime; a cold-blooded performance of the concerto. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "cold-blooded" in a sentence
"The scientists were keen to clarify the term "cold-blooded", which - although a familiar description used for many reptiles, amphibians and fish - can be misleading."
"“You know, what you refer to as cold-blooded murder, others term justifiable homicide.”"
"A jury in Canada has found three members of an Afghan family guilty of drowning three teenage sisters and another woman in what the judge described as "cold-blooded, shameful murders" resulting from a "twisted concept of honour"."