An iron will does not imply necessarily ugliness of temper, obstinacy, or pig-headedness.

Perhaps there was something in his voice which she as a Russian understooda ring of that which we call pig-headedness in others.

"It's not talent; it's pig-headedness.

The rest of the fleet had been destroyed, victims to the incompetence and pig-headedness of the naval officer in charge of the harbor.

Loyalty had been responsible not for his conservatism, but for the pig-headedness with which he had acted upon it.

When, whether in state or church, the vices and defects of government have lasted for ages and become habits not only inveterate but closely connected with powerful personal interests, a day at last comes when the deplorable result is seen in pig-headedness and weakness.