radical1/ˋrædIkḷ; ˈrædIk$l/adj 1 a radical change or difference is very big and important〔变革或差异〕重大的﹐根本的: radical economic reforms 彻底的经济改革2 if someone is radical, or if they have radical ideas, their ideas are very new and extreme〔人或观点〕激进的﹔前卫的: radical feminists 激进的女权主义者 —radically /-kḷI; -kli/adv : Life suddenly changed radically. 生活突然发生了彻底的改变。
radical2n [C] someone who has new and extreme ideas, especially someone who wants complete social and political change 激进分子〔尤指主张对社会和政治作彻底变革的人〕 —radicalism n [U]