This is the 10878th most frequent Korean word.
극렬히
"Extremely" or "intensely."
극렬히 in this sentence describes the intensity of the assertion, emphasizing that it was done passionately or in a vehement manner.
그는 자신의 의견을 극렬히 주장했다.
He strongly asserted his opinion.
극렬히 here conveys the degree of opposition, signifying that the resistance was energetic and firm.
시위대는 정부의 정책에 극렬히 반대했다.
The protesters strongly opposed the government's policies.
극렬히 in this example illustrates the enthusiastic and forceful nature of the support being shown.