superannuated

superannuated
adj [usu attrib 通常作定语]
(infml esp joc 口, 尤作戏谑语) old and barely fit for work or use 年老不适於工作的; 陈旧不宜使用的
    Are you still riding that superannuated old bike? 你还骑那辆老掉牙的自行车吗?

牛津英汉双解词典