disservice
noun [ S ] uk/ˌdɪsˈsɜː.vɪs/ us/ˌdɪsˈsɝː.vɪs/
有害行为；损害，危害
an action that harms something or someone
She has done a great disservice to her cause by suggesting that violence is justifiable. 她因暗示暴力的合理性，从而使她的事业蒙受了巨大的损失。
Opposite: service