o•bliqueəˈblik, oʊˈblik; Mil. əˈblaɪk, oʊˈblaɪk(adj.)

1. neither perpendicular nor parallel to a given line or surface; slanting; sloping.

   Category: Math

2. (of a solid) not having the axis perpendicular to the plane of the base.

   Category: Math

3. diverging from a given straight line or course.

4. not straight or direct, as a course.

5. indirectly stated or expressed.

6. indirectly or deviously aimed at or reached.

7. unethical; underhand.

8. pertaining to or denoting muscles running obliquely in the body as opposed to those running transversely or longitudinally.

   Category: Anatomy

9. Bot. having unequal sides, as a leaf.

   Category: Botany

10. Gram. of or pertaining to any case of inflection except the nominative or vocative.

    Category: Grammar

11. (adv.)Mil. at an angle of 45°.

    Category: Military

12. (n.)something that is oblique.

13. any of several oblique muscles.

    Category: Anatomy

Origin of oblique:

1400–50; late ME oblike < L oblīquus slanting; see ob - (second element obscure)

o•blique′ness(n.)