orthogonal (adj.)

• cube-shaped
• cubic
• cubiform
• cuboid
• diced
• foursquare
• normal
• oblong
• perpendicular
• plumb
• precipitous
• quadrangular
• quadrate
• quadrilateral
• rectangular
• rhombic
• rhomboid
• right-angled
• sheer
• square
• steep
• tetragonal