clueless

from WordNet (r) 3.0 (2006)

clueless
    adj 1: totally uninformed about what is going on; not having
           even a clue from which to infer what is occurring

from The Collaborative International Dictionary of English v.0.48

clueless \clueless\ adj.
   1. not providing any clue.
      [PJC]

   2. completely uninformed or unaware; hopelessly ignorant;
      utterly bewildered.
      [PJC]

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