THESAURUS
orthogonal
cube-shaped, cubed, cubic, cubiform, cuboid, diced, foursquare, normal, oblong, orthodiagonal, orthometric, perpendicular, plumb, plunging, precipitous, quadrangular, quadrate, quadriform, quadrilateral, rectangular, rhombic, rhomboid, right-angle, right-angled, right-angular, sheer, square, steep, straight-up, straight-up-and-down, tetragonal, tetrahedral, trapezohedral, trapezoid, up-and-down
ROGET THESAURUS
orthogonal
Verticality
N
verticality, erectness, perpendicularity, right angle, normal, azimuth circle, wall, precipice, cliff, elevation, erection, square, plumb line, plummet, vertical, upright, erect, perpendicular, plumb, normal, straight, bolt, upright, rampant, standing up, rectangular,
orthogonal, vertically, up, on end, up on end, right on end, a plomb, endwise, one one's legs, at right angles.
Perpendicularity
N
perpendicularity, orthogonality, verticality,
orthogonal, perpendicular, rectangular, uncorrelated.