1) Bullet-headed 2) Exclusively Saxon word 3) Exclusively Anglo word 4) Obstinate and stupid 5) Pigheaded 6) Stubborn 7) Word of purely Anglo origin 8) Word with Anglo-Saxon origins Found on https://www.crosswordclues.com/clue/bullheaded
Bull'head`ed (bul'hĕd`ĕd) adjective Having a head like that of a bull. Fig.: Headstrong; obstinate; dogged. Found on http://www.encyclo.co.uk/webster/B/111