Sangfroid By Deane Barker • January 6, 2022 • Definition: composure, self-possession or imperturbability especially when in a dangerous situation It’s literally French for “cold blood.” Why I Looked It Up In The Knowledge, a (pretentious) character said: They might do well in Brighton, but not at the Artemis. We have to maintain a certain level of…sangfroid…you know.