gradual
inclined
ascending
aslant
aslope
atilt
bevel
beveled
bias
biased
canting
careening
declivitous
declivous
descending
inclinational
inclinatory
inclining
leaning
listing
oblique
out of plumb
out of square
pitched
pitching
raking
recumbent
shelving
shelvy
sideling
sidelong
slant
slanted
slanting
slantways
slantwise
sloped
tilted
tilting
tipped
tipping
coping
groping
hoping
moping
roping
scoping