oblique -- (slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angled; "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")
devious, oblique -- (indirect in departing from the accepted or proper way; misleading; "used devious means to achieve success"; "gave oblique answers to direct questions"; "oblique political maneuvers")