mid-14c., present-participle adjective from blunder (v.). Related: Blunderingly. As a verbal noun, mid-15c.
Entries linking to blundering
blunder v.
mid-14c., "to stumble about blindly," from a Scandinavian source akin to Old Norse blundra "shut one's eyes," perhaps from Proto-Germanic *blinda- "blind" (see blind (adj.)). The meaning "make a stupid mistake" is recorded by 1711. Related: Blundered; blundering.