Coolness and composure, especially in trying circumstances.(noun)
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 "sang-froid" in a sentence
"That won't prevent it—suggests that her reputation for dry wit and sang-froid was well deserved."
"Still, French sang-froid about the likely rising cost of stabilizing the euro zone may be tested as campaigning heats up ahead of the 2012 elections."
"But he went among them single-handed, his bearing being a delicious composite of humility, familiarity, sang-froid, and insolence."