Two-dimensionality is a term used to describe a two-dimensional object or artwork. Synonyms for this term include flatness, planarity, and bi-dimensionality. "Flatness" emphasizes the lack of depth or thickness in the object or artwork, while "planarity" emphasizes the evenness and smoothness of its surface. "Bi-dimensionality" also refers to the use of two dimensions, but suggests a more structured or intentional approach. Other synonyms for two-dimensionality include two-dimensionalism, two-dimensionness, and two-dimensionalityness, although these words are less commonly used. Regardless of the synonym used, describing an object or artwork as two-dimensional highlights its unique characteristics and limitations in terms of spatial depth and dimensionality.