#diametrically opposite

• Antipodal — Relating to the antipode, belonging to the antipode, or situated at a diametrically opposite point on the surface of a sphere or the Earth; structurally positioned at the end of an imaginary line passing directly through the geometric center of a celestial body. In mathematics, it describes a pair of spherical points that maximize the distance between them, having inverted coordinates.
• Antipodic — Belonging to the antipode, relating to the antipode, or situated at a diametrically opposite point on a sphere or the Earth's surface; structurally characterized by the symmetrical reversal of position relative to the geometric center of reference. In an astronomical sense, it describes opposite planetary regions experiencing complementary climatic or gravitational phenomena.