[blun.der] vb blun.dered ; blun.der.ing [ME blundren] vi (14c) 1: to move unsteadily or confusedly
2: to make a mistake through stupidity, ignorance, or carelessness ~ vt 1: to utter stupidly, confusedly, or thoughtlessly
2: to make a stupid, careless, or thoughtless mistake in -- blun.der.er n -- blun.der.ing.ly adv
[2]blunder n (ca. 1706): a gross error or mistake resulting usu. from stupidity, ignorance, or carelessness syn see error