The Collaborative International Dictionary of English v.0.48:

Slanting \Slant"ing\, a.
   Oblique; sloping. -- Slant"ing*ly, adv.
   [1913 Webster] Slantwise

The Collaborative International Dictionary of English v.0.48:

Slant \Slant\, v. i. [imp. & p. p. Slanted; p. pr. & vb. n.
   Slanting.] [OE. slenten to slope, slide; cf. Sw. slinta to
   slide.]
   To be turned or inclined from a right line or level; to lie
   obliquely; to slope.
   [1913 Webster]

         On the side of younder slanting hill.    --Dodsley.
   [1913 Webster]

WordNet (r) 3.0 (2006):

slanting
    adj 1: having an oblique or slanted direction [syn: aslant,
           aslope, diagonal, slanted, slanting, sloped,
           sloping]

Moby Thesaurus II by Grady Ward, 1.0:

69 Moby Thesaurus words for "slanting":
   abstractionism, aslant, aslope, atilt, bevel, beveled, bias,
   biased, canting, careening, coloring, corruption, deformation,
   distortion, exaggeration, expressionism, false coloring,
   falsification, garbling, hyperbole, inaccuracy, inclinational,
   inclinatory, inclined, inclining, injustice, leaning, listing,
   litotes, miscoloring, misconstruction, misdirection, misdrawing,
   misinterpretation, mispainting, misquotation, misreport,
   misrepresentation, misstatement, misteaching, misuse, nonrealism,
   out of plumb, out of square, overdrawing, overstatement,
   perversion, pitched, raking, recumbent, shelving, shelvy, sideling,
   sidelong, slant, slanted, slantways, slantwise, sloped, sloping,
   straining, tilted, tilting, tipped, tipping, tipsy, torturing,
   twisting, understatement