a. Having a massive head, broadheaded; fig. blindly impetuous, blockheaded. Hence Bullheadedness.

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1818.  Scott, Hrt. Midl., xviii. They … flourish with their bull-headed obstinacy.

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1846.  Comic Jack Giant Kill. (ed. 3), 7. This beef-eating, bull-headed, ‘son-of-a-gun.’

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1884.  F. Britten, Watch & Clockm., 153. See that the pivots are … neither bull headed nor taper.

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1858.  Carlyle, Fredk. Gt., I. IV. viii. 465. Rough and stiff as natural bull-headedness helped by Prussian pipeclay can make it.

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