muddle-headed

from The Collaborative International Dictionary of English v.0.48

Muddlehead \Mud"dle*head`\, n.
   A stupid person; a blunderer. [Colloq.] --C. Reade. --
   {Mud"dle-head`ed}, a. [Colloq.] --Dickens.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

23 Moby Thesaurus words for "muddleheaded":
      addlebrained, addled, addleheaded, addlepated, beclouded,
      befuddled, blear-witted, cloudy, dizzy, fogged, foggy,
      fuddlebrained, fuddled, hazy, in a fog, in a muddle, misted, misty,
      muddled, muddybrained, muzzy, puzzleheaded, scramblebrained

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