stiff-necked /ˈstɪfˈnɛkt/ (a.)頑固的
Stiff-necked a. Stubborn; inflexibly obstinate; contumacious; as, stiff-necked pride; a stiff-necked people. ◄ ►
stiff-necked adj : haughtily stubborn; "a stiff-necked old Boston Brahmin"