of a dreadful kind; "there was a dreadfully bloody accident on the road this morning"恐ろしい種類の酷く
例:there was a dreadfully bloody accident on the road this morning 恐ろしい流血事故が今朝、その路上で起こった
in a dreadful manner; "as he looks at the mess he has left behind he must wonder how the Brits so often managed to succeed in the kind of situation where he has so dismally failed"恐ろしい方法で堪らなく