- having the dimensions of height and width only: a two-dimensional surface.
- (of a work of art) having its elements organized in terms of a flat surface, especially emphasizing the vertical and horizontal character of the picture plane: the two-dimensional structure of a painting.
- (in a literary work) shallow, unconvincing, or superficial in execution: a novel having two-dimensional characters.
- of, having, or relating to two dimensions, usually describable in terms of length and breadth or length and height
- lying on a plane; having an area but not enclosing any volume
- lacking in depth, as characters in a literary work
- (of painting or drawing) lacking the characteristics of form or depth
