Exceptionally is a related term of dreadfully.
As adverbs the difference between exceptionally and dreadfully
is that exceptionally is to an unusual, remarkable or exceptional degree while dreadfully is in a dreadful manner.
exceptionally
English
Adverb
(
en adverb)
To an unusual, remarkable or exceptional degree.
Antonyms
* categorically
dreadfully
English
Adverb
(
en adverb)
In a dreadful manner.
Exceptionally, eminently, very much.