With a cool indomitable will she had set about it.
"Command"
William McFee
Picture them in an indomitable long-drawn-out line, wheel to wheel; shadowy forms flitting over that last-or first-piece of road, full of hope and exultation at the thought of the journey's end, or full of anticipation at the journey's beginning.
"Cornwall"
G. E. Mitton
He stood there immovable, his arms extended, his legs apart, in an attitude of indomitable resistance.
"The Greater Inclination"
Edith Wharton