adj.
- Lacking feeling or emotion: a cold-blooded killer.
- Executed without feeling or emotion: a cold-blooded crime; a cold-blooded performance of the concerto.
- Ectothermic.
cold-bloodedness cold'-blood'ed·ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.