Dreadfully
Part of speech: adverb
Definition: In a dreadful manner. Exceptionally, eminently, very much.
Horribly
Part of speech: adverb
Definition: In a horrible way; very badly.To an extreme degree or extent.With a very bad effect.
Dreadfully as an adverb is in a dreadful manner. while Horribly as an adverb is in a horrible way; very badly.
Part of speech: adverb
Definition: In a dreadful manner. Exceptionally, eminently, very much.
Part of speech: adverb
Definition: In a horrible way; very badly.To an extreme degree or extent.With a very bad effect.
We hope you now know whether to use Dreadfully or Horribly in your sentence.