급진 [急進]1 [빨리 나아감] rapid progress[advance]. ~하다 advance rapidly; make rapid progress; speed up; push forward; rush.2 [과격] going to extremes; radicalism. ~적인 radical / extreme.▷ 급진당 a radical party; the radicals.▷ 급진당원 a radical; +모두 보이기...an extremist.▷ 급진 분자 an extreme[a radical] element.▷ 급진 사상 radical ideas[thought / thinking].▷ 급진주의 radicalism.▷ 급진주의자 a radical(ist); an extremist.▷ 급진파 the radicals; a radical faction; the extremists.