Strength of mind that allows one to endure pain or adversity with courage.(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 "fortitude" in a sentence
"That internal fortitude is one of the most powerful things you can possess as a writer."
"Finally a state legislator with some intestinal fortitude is attempting to repeal the requirement that one has to obtain a pistol permit from the county sheriff before one may buy a handgun (or crossbow)."
"I hope that our Farmers understand that out in the country as a whole, we are with them and that our admiration for their fortitude is boundless."