rickety

a. 患软骨病的,驼背的,摇摆的

An old, rickety vehicle, especially a decrepit automobile or aircraft.

破旧汽车，破旧飞机一种用久而破烂的交通工具，尤指破坏了的汽车或飞机

The ladder looks rather rickety; don't attempt to climb it unless you are sure you can do it with safety.

这梯子看起来不怎么牢固，除非能确保安全，否则你就不要去爬。