So he sat, with a steadfastly vacant gaze, pausing in his work.
"You are not a shoemaker by trade?" said Mr. Lorry, looking steadfastly at him.
As he held out his hand for the shoe that had been taken from him, Mr. Lorry said, still looking steadfastly in his face: "Monsieur Manette, do you remember nothing of me?"
Defarge and his wife looked steadfastly at one another.
The father had long ago taken up his bundle and bidden himself away with it, when the women who had tended the bundle while it lay on the base of the fountain, sat there watching the running of the water and the rolling of the Fancy Ball—when the one woman who had stood conspicuous, knitting, still knitted on with the steadfastness of Fate.
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.