So much were they surprised at our undauntedness, that they retired about a hundred roods from us.
"The Life and Most Surprising Adventures of Robinson Crusoe, of York, Mariner (1801)" by Daniel Defoe
Jim never forgot the utter undauntedness, impudence and malice of that face.
"The Mascot of Sweet Briar Gulch" by Henry Wallace Phillips
Let no world-syren come to sing to me this day, and wheedle from me my undauntedness.
"Pierre; or The Ambiguities" by Herman Melville