7
grimly
5
dreadfully
4
frightfully
4
gruesomely
4
horribly
4
horridly
4
terribly
4
terrifically
3
awfully
3
appallingly(adverb, dreadfully, terrifyingly)
2
atrociously
2
direly
2
fearfully
2
formidably
2
hideously
2
horrendously
2
tremendously
1
abhorrently
1
abominably
1
awesomely
11 years ago|1.7k views|share |citing 
APASmart Define. (2015). horrifically thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/horrifically/thesaurus/synonyms
ChicagoSmart Define. 2015. "horrifically thesaurus" https://smartdefine.org/horrifically/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, horrifically thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/horrifically/thesaurus/synonyms>.
MLASmart Define. "horrifically thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/horrifically/thesaurus/synonyms>