rattlepated

from WordNet (r) 3.0 (2006)

rattlepated
    adj 1: lacking sense or discretion; "his rattlebrained crackpot
           ideas"; "how rattlepated I am! I've forgotten what I came
           for"- Glenway Westcott [syn: {rattlebrained},
           {rattlepated}, {scatterbrained}, {scatty}]

from The Collaborative International Dictionary of English v.0.48

Rattle-pated \Rat"tle-pat`ed\, a.
   Rattle-headed. "A noisy, rattle-pated fellow." --W. Irving.
   [1913 Webster]