obdurant

Peter, I'm afraid that like Beth you are being obdurant.

"Is it possible that there might be something really ugly at the core of contemporary liberalism?" Ann Althouse 2009

The motor-cycle had been halted in mid-pursuit, its rider gesticulating in futile rage and vexation while the obdurant bluecoat held him fast.

The Fifth Ace Douglas Grant

What continues to amaze me about the religious wrong, is that in this day of easily available information from government sources, schools, and (especially) the Internet, their obdurant ignorance and pig headedness continues unabated.

AlterNet.org Main RSS Feed 2009

Their stupidity and willful ignorance is intractible and obdurant, making them impossible to reason with.

AlterNet.org Main RSS Feed 2009

Not at all intimidated by this rebuff, but rather sharpened in wits and appetite, Mr Swiveller forwarded the same message to another and more distant eating-house, adding to it by way of rider that the gentleman was induced to send so far, not only by the great fame and popularity its beef had acquired, but in consequence of the extreme toughness of the beef retailed at the obdurant cook's shop, which rendered it quite unfit not merely for gentlemanly food, but for any human consumption.

The Old Curiosity Shop Charles Dickens 1841

Not at all intimidated by this rebuff, but rather sharpened in wits and appetite, Mr. Swiveller forwarded the same message to another and more distant eating-house, adding to it by way of rider that the gentleman was induced to send so far, not only by the great fame and popularity its beef had acquired, but in consequence of the extreme toughness of the beef retailed at the obdurant cook's shop, which rendered it quite unfit not merely for gentlemanly food, but for any human consumption.

Old Curiosity Shop 1800