disavow
verb [ T ] formal uk/ˌdɪs.əˈvaʊ/ us/ˌdɪs.əˈvaʊ/
声称对…一无所知;否认对…负有任何责任;声称与…毫无关联
to say that you know nothing about something, or that you have no responsibility for or connection with something
They were quick to disavow the rumour. 他们迅速否认与那些谣传有任何牵连。
She tried to disavow her past. 她试图否认自己的过去。