There are a number of synonyms for the word "horribly" that can be used to better express this emotion. Some of the words that can be used instead include dreadfully, terribly, awfully, horrendously, frightfully, and extremely. Each of these words connotes a sense of negativity and despair that is often associated with the word "horribly". Using one of these synonyms can help to better convey the intended meaning of a sentence, giving it a more emotional impact. Whether it is in writing or in conversation, using these synonyms can help to create a more vivid and impactful depiction of the situation at hand.