Thick headed; stupid; lacking penetration or discernment.
The Century Dictionary (Public Domain)
Use "wooden-headed" in a sentence
""It is epitomized by a historian's statement about Philip II of Spain, the most wooden-headed of all sovereigns: 'No experience of the failure of his policy could shake his belief in its essential excellence.'""
"And their war weapons were laid away by the sides of the lifeless bones that had wielded them — rusty old horse-pistols, derringers, pepper-boxes, five-barrelled fantastiques, Kentucky long riffles, muskets handled in trade by John Company and Hudson's Bay, shark-tooth swords, wooden stabbing-knives, arrows and spears bone-headed of the fish and the pig and of man, and spears and arrows wooden-headed and fire-hardened."
"And while chivalry committed suicide over its ladies 'gloves, the stout, wooden-headed burghers, with an eye to the facts of life, dickered and bickered in trade."