Synset

slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angled
<adj.all> freq. cnt.: 2 freq. cnt.: 2

"the oblique rays of the winter sun"
"acute and obtuse angles are oblique angles"
"the axis of an oblique cone is not perpendicular to its base"

lexical pointers

antonym

derivationally related form

semantic pointers

also see