From Longman Dictionary of Contemporary Englishstiff-neckedˌstiff-ˈnecked adjective PROUDtoo proud, and refusing to change or obey SYN stubborn
Examples from the Corpus
stiff-necked• Stubborn, proud, and often stiff-necked and argumentative.• But what else could be expected from such a stiff-necked people?• His repression is caused by his stiff-necked, stifled upbringing. 