oblique

Any grammatical case other than the nominative.

A diagonally arranged abdominal muscle on either side of the torso.

Indirect in departing from the accepted or proper way; misleading.

“gave oblique answers to direct questions”

“oblique political maneuvers”

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”