The Collaborative International Dictionary
Blunder \Blun"der\, v. i. [imp. & p. p. Blundered; p. pr. & vb. n. Blundering.] [OE. blunderen, blondren, to stir, confuse, blunder; perh. allied to blend to mix, to confound by mixture.]
To make a gross error or mistake; as, to blunder in writing or preparing a medical prescription.
--Swift.-
To move in an awkward, clumsy manner; to flounder and stumble. I was never distinguished for address, and have often even blundered in making my bow. --Goldsmith. Yet knows not how to find the uncertain place, And blunders on, and staggers every pace. --Dryden. To blunder on.
To continue blundering.
To find or reach as if by an accident involving more or less stupidity, -- applied to something desirable; as, to blunder on a useful discovery.