gainsay
verb [ T often in negatives ] formal uk/ˌɡeɪnˈseɪ/ us/ˌɡeɪnˈseɪ/ gainsaid | gainsaid
否认;反驳;反对
to refuse to accept something as the truth
Certainly there's no gainsaying (= it is not possible to doubt) the technical brilliance of his performance. 无可否认，他的演奏技巧非常精湛。
Synonyms: challenge dispute