also: たいせき
noun-modifying (irregular)
antipodal; diametrically opposite
Mathematical term describing points on a sphere that are directly opposite each other. Also used figuratively for diametrical opposition.
Antipodal points on the Earth are located exactly opposite each other.
彼らの意見は対蹠的で、妥協の余地がなかった。
Their opinions were diametrically opposed, leaving no room for compromise.
Standard kanji form for the mathematical term.
Alternate reading; たいしょ is more common.
From Chinese 對蹠 (duìzhí), composed of 對 'opposite' and 蹠 'sole of the foot', originally referring to people standing with their feet opposite each other on the globe.