Definition of "pig-headedness" [pig-headedness]

• The character of being pig-headed; stupid perversity or obstinacy. (noun)

The Century Dictionary (Public Domain)

• "Cecil Rhodes, speaking of what would have obtained but for the pig-headedness of George III., and of what will obtain when England and the United States are united, said, "No cannon would ... be fired on either hemisphere but by permission of the English race.""
• "Mitsuya has a younger brother, estranged from him due to his “girly” dress work, and Ageha tries to bring the two of them together, demonstrating two of the essential shojo heroine characteristics: care for others, so a desire to prevent them from being in painful situations, and pig-headedness."
• "But I don't find it outside the realm of possibility that her health providers might have become frustrated at her pig-headedness and just given up."