characterized by opposite extremes; completely opposed
同义词：diametric, opposite, polar
diametrical详细解释
di.a.met.ri.cal adj.（形容词）Of, relating to, or along a diameter.直径的：直径的，与直径有关的，或沿直径的Exactly opposite; contrary.相反的：完全对立的；正相反的 【引伸】 di.amet.rically adv.（副词）
