unbowed

Though unsuccessful in her first foray into national politics, unbowed, Palin has shown more mettle at times than President Obama.

If the Colonel were no longer with him, still his head was bloody but unbowed—and he would fight on to the end.

It is the breakdown of this regime or the rise of new and as yet unbowed adversaries that leads to the reactive use of force.

His brow was unwrinkled, his piercing eye undimmed, and his tall figure majestic and unbowed.

The Allies' heads were "bloody but unbowed," and they were still the masters of their fate.

He knew a poem by a man who wrote, "My head is bloody but unbowed."