[1] : The Collaborative International Dictionary of English v.0.48

featherbrained \feath"erbrained\, feather-brained
\feath"er-brained\, a.
   giddy; frivolous; lacking seriousness; given to frivolity;
   feather-headed. colloq.

   syn: airheaded, dizzy, empty-headed, giddy, lightheaded,
        light-headed, silly.
        1913 webster + wordnet 1.5

[2] : WordNet (r) 2.0

featherbrained
     adj : lacking seriousness; given to frivolity; "a dizzy blonde";
           "light-headed teenagers"; "silly giggles" syn: airheaded,
            dizzy, empty-headed, giddy, light-headed, lightheaded,
            silly
see also:
airheaded dizzy empty-headed giddy light-headed lightheaded 
silly 

[3] : Moby Thesaurus II by Grady Ward, 1.0

42 moby thesaurus words for "featherbrained":
   birdbrained, birdwitted, brainless, capricious, dizzy,
   empty-headed, featherheaded, fickle, flighty, fluffy, fluttery,
   frivolous, frothy, gaga, giddy, giddy-brained, giddy-headed,
   giddy-pated, giddy-witted, harebrain, harebrained, impulsive,
   light, rattlebrained, rattleheaded, rattlepated, scatterbrained,
   scramblebrained, shallow, shallow-headed, shallow-minded,
   shallow-pated, shallow-witted, shatterbrained, silly, skittish,
   superficial, thoughtless, unprofound, volatile, whimsical,
   witless

Featherbrained >> F Words
Featherbrained, definition of term: Featherbrained
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