troublesome
adjective uk/ˈtrʌb.əl.səm/ us/ˈtrʌb.əl.səm/
C2 令人烦恼的；讨厌的；麻烦的，棘手的
causing a lot of problems for someone
Her hip has been troublesome for quite a while, and she'll probably need surgery on it. 她的髋部有很长一段时间都不舒服，可能需要动手术。
The negotiations have proven more troublesome than any of us expected. 谈判比我们所有人事先想象的都要棘手。