Main entry: planar, two-dimensional
Definition: involving two dimensions
Antonyms: linear, one-dimensional
Definition: of or in or along or relating to a line; involving a single dimension
Antonyms: three-dimensional, cubic
Definition: having three dimensions
Antonyms: contrasty
Definition: having sharp differences between black and white
Antonyms: natural
Definition: (of a musical note) being neither raised nor lowered by one chromatic semitone
Antonyms: sharp
Definition: (of a musical note) raised in pitch by one chromatic semitone