N. obliquity, inclination, slope, slant, crookedness, slopeness, leaning, bevel, tilt, bias, list, twist, swag, cant, lurch, distortion, bend, tower of pisa, acclivity, rise, ascent, gradient, khudd, rising ground, hill, bank, declivity, downhill, dip, fall, devexity|, gentle slope, rapid slope, easy ascent, easy descent, shelving beach, talus, monagne russe, facilis descensus averni

V. intersect, lack parallelism