ultraKK [ˋʌltrə] /ˈʌltɹə/發音形容詞1極端的、偏激的、激進的His ultra views on immigration cost him the election.他在移民議題上的極端立場讓他輸掉了選舉。2超級的、極致的口語She bought an ultra lightweight tent for the hike.她買了一頂超輕量的帳篷去健行。名詞1極端主義者、激進分子A small group of ultras disrupted the peaceful march.一小群激進分子破壞了原本和平的遊行。2超級馬拉松運動用語He finished his first ultra in just under twelve hours.他不到十二小時就跑完人生第一場超級馬拉松。