It’s now a matter of remaining calm and steadfast, of gritting our teeth and keeping a stiff upper lip! France, Russia, Italy, and even Germany, can cry out in agony, but we don’t yet have that right! Oh, Kitty, the best part about the invasion is that I have the feeling that friends are on the way.
There are no more uses of "steadfast" in the book.
Show samples from other sources
But then, that’s who Helene is: Her faith is steadfast.
Sabaa Tahir -- An Ember in the Ashes
Moving apace with the river was a long single-file line of men, eyes aimed at their feet, shoulders tense, walking steadfastly nowhere.