diabolical

/ˌdaɪəˈbɒlɪkəl/
(informal, especially BrE) extremely bad or annoying 糟糕透顶的；烦人的；讨厌的 SYN terrible
The traffic was diabolical.
交通状况糟糕透了。
(also less frequent diabolic) morally bad and evil; like a devil 道德败坏的；邪恶的；恶魔似的