[f. BLUNDER sb. or v. + HEAD: probably an alteration of the earlier dunderhead, as blunderbuss represents donderbus.] A blundering muddle-headed fellow.

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1697.  Vanbrugh, Relapse, IV. i. (1730), 72. My Fellow’s a Blunderhead.

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1692.  R. L’Estrange, Fables, cccxiii. 275 (J.). This Thick-skull’d Blunder-head.

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1884.  Academy, 22 March, 199. That order of good-natured blunderheads wherein certain lady novelists … delight.

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  Hence Blunderheaded a., blundering, stupid, muddle-headed; Blunderheadedness.

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1763.  Brit. Mag., IV. 418. The blunder-headed fellow had laid the white-stone plates.

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1835.  Sir J. Ross, N.-W. Pass., lvi. 720. With the usual blunderheadedness of men on such occasions, he assured me that I had been dead two years.

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