Meaning of oblique

(adj) 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"

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"

(noun) any grammatical case other than the nominative

a diagonally arranged abdominal muscle on either side of the torso