DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   2-dimensional
       adj 1: lacking the expected range or depth; not designed to give
              an illusion or depth; "a film with two-dimensional
              characters"; "a flat two-dimensional painting" [syn:
              two-dimensional, 2-dimensional, flat]