WordNet (r) 3.0 (2006):
two-dimensional adj 1: involving two dimensions [syn: planar, two- dimensional] [ant: cubic, linear, one-dimensional, three-dimensional] 2: 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]