[f. BLUNDER v. + -ING1.]
† 1. Bungling or stupid action. Obs.
c. 1440. Promp. Parv., 41. Blunderynge or blunt warkynge, hebefaccio.
† 2. Confusion, disturbance. Obs.
c. 1526. Skelton, Magnyf., 406. I hate this blunderyng thou dost make.
3. The making of gross mistakes.
1857. Toulmin Smith, Parish, 169. There is no check on carelessness or blundering.
