not erect or perpendicular; neither parallel to, nor at right angles from, the base; slanting; inclined.-not straightforward; indirect; obscure; hence, disingenuous; underhand; perverse; sinister.-not direct in descent; not following the line of father and son; collateral.-an oblique line.-to deviate from a perpendicular line; to move in an oblique direction.-to march in a direction oblique to the line of the column or platoon; -- formerly accomplished by oblique steps, now by direct steps, the men half-facing either to the right or left.