contraclockwise

from WordNet (r) 3.0 (2006)

contraclockwise
    adj 1: in the direction opposite to the rotation of the hands of
           a clock [syn: {counterclockwise}, {anticlockwise},
           {contraclockwise}] [ant: {clockwise}]

from The Collaborative International Dictionary of English v.0.48

contraclockwise \contraclockwise\ adj.
   in the direction opposite to the rotation of the hands of a
   clock; counterclockwise. Opposite of {clockwise}. [Also See:
   {sinistral}.]

   Syn: counterclockwise, anticlockwise.
        [WordNet 1.5]