stiff–necked 
/ˈstɪfˈnɛkt/ adjective
/ˈstɪfˈnɛkt/ adjective [more stiff–necked; most stiff–necked] disapproving : very proud and formal
▪ a stiff-necked military man ▪ stiff-necked arrogance ▪ She's too stiff-necked to ask for help.
▪ a stiff-necked military man ▪ stiff-necked arrogance ▪ She's too stiff-necked to ask for help.
