incapacity
n[U]
~ (to do sth); ~ (for sth/doing sth) lack of ability and necessary strength (to do sth); weakness or inability 无能力(做某事); 孱弱; 无能
his increasing incapacity for work 他对工作日渐不能胜任
society´s incapacity to deal with the growing numbers of the elderly 社会对人口老化问题之无能为力.