The term “oblique” denotes something slanting or inclined, neither parallel nor perpendicular to a given line or surface. In geometry, it refers to lines or planes that are neither parallel nor perpendicular. The word also carries a figurative meaning, describing something indirect or evasive in expression or manner.
Understanding this concept is essential in fields like mathematics, engineering, and architecture, where precise spatial relationships are critical. Historically, the term has roots in Latin and has been used for centuries to describe angles and directions outside the standard perpendicular and parallel orientations. Its figurative meaning adds nuance to communication, enabling descriptions of subtle or indirect approaches.