Synonyms for Aslant (same or very similar meaning)
WordNet sense 1 (having an oblique or slanted direction):
diagonal, aslope, slanted, slanting, sloped, sloping
WordNet sense 2 (at an angle to the horizontal or vertical position):
inclined
WordNet sense 3 (at an oblique angle):
athwart, obliquely
From the ODE community, based on WordNet
add/edit