1. [ adverb ] of a dreadful kind
Synonyms: horribly awfully

"there was a dreadfully bloody accident on the road this morning"

Related terms: awful atrocious dreadful awful atrocious
2. [ adverb ] in a dreadful manner
Synonyms: dismally

"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"

Related terms: atrocious atrocious
Similar spelling:   dreadful