pow·er·less /ˈpaʊəlɪs/ a. 无力量的；无能为力的；无权力的；无效力的 His legs crumpled, and he was powerless to rise. 他两腿一软倒下，无力再站立起来。 I am powerless to help you. 我没法帮助你。 a disease against which modern medicine is virtually powerless 现代医药简直无法医治的疾病 The vice-presidency is a powerless office. 副总统是个没有什么权力的职位。