blockish
blocky
box-shaped
boxlike
boxy
brick-shaped
cube-shaped
cubelike
cubical
cubiform
cuboid
cuboidal
isometric
solid
3-D
cubed
cubic curve
diced
dimensional
flat
foursquare
fourth-dimensional
oblong
orthogonal
proportional
quadrangular
quadrate
quadriform
quadrilateral
rectangular
rhombic
rhomboid
space
space-time
spatial
spatiotemporal
spherical
square
stereoscopic
superficial
surface
tetragonal
tetrahedral
three-dimensional
trapezohedral
trapezoid
two-dimensional
volumetric
crystallization
2
2-1/2
25
5-1/2
6
eighty-two
fifty-six
forty-one
hexagonal
linear
quadratic
scant
sixty-four
sixty-three
sq
twenty-eight
uniaxial
cherubic
pubic