Hairbrained

from The Collaborative International Dictionary of English v.0.48
Hairbrained \Hair"brained`\ (h[^a]r"br[=a]nd`), a.
   See {Harebrained}. Hairbreadth
    
from The Collaborative International Dictionary of English v.0.48
Harebrained \Hare"brained`\ (h[^a]r"br[=a]nd`), a.
   Wild; giddy; volatile; heedless. "A mad hare-brained fellow."
   --North (Plutarch). [Written also {hairbrained}.]
   [1913 Webster]
    

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