two-dimensional

Adjective

1. Existing in two dimensions.
   • Of course, it is impossible to show what a holograph is really like in a two dimensional picture such as this. - 1983, Ellen Nevins, Encyclopedia of Computers and Electronics, page 108:
   • We show that in the two-dimensional case, every objective, isotropic and isochoric energy function which is rank-one convex on #92;mathrm#123;GL#125;#43;(2) is already polyconvex on #92;mathrm#123;GL#125;#43;(2). -...
2. Not creating the illusion of depth; lacking detail or believability.
   • a two-dimensional character in a play