What does "cold blood" mean?

A state of mild or low emotions, previously understood as a condition whereby the blood has not been appreciably heated by emotional intensity.

What is a synonym for "cold blood"?

Common synonyms include: anesthesia, autism, chill, coldness, dead pan, dispassion.

noun

noun ·Rare ·Advanced level

Noun

1
A state of mild or low emotions, previously understood as a condition whereby the blood has not been appreciably heated by emotional intensity. uncountable