20
awfully(adverb, pretty, absolutely, very, really)
13
dreadfully(adverb, badly, greatness, very, extremely)
12
extremely(adverb, well, very, really, greatly)
11
very(adverb, well, badly, really, completely)
10
exceedingly(adverb, very)
10
frightfully(adverb, greatness, very)
9
abominably(adverb, evilly)
9
badly(adverb, very, arouse bad feelings, evilly, desperately)
9
greatly(adverb, very)
9
horribly(adverb, greatness, very, arouse bad feelings)
8
atrociously(adverb, evilly)
8
grimly(adverb, arouse bad feelings)
7
fearfully(adverb, greatness, very)
7
hideously(adverb, arouse bad feelings, evilly)
7
horridly(adverb, arouse bad feelings)
7
really(adverb, well, very, positively, extremely)
7
repulsively(adverb, arouse bad feelings, evilly)
6
awful
6
gruesomely(adverb, arouse bad feelings)
6
miserably(adverb, greatness, arouse bad feelings)
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APASmart Define. (2016). terribly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/terribly/thesaurus/synonyms
ChicagoSmart Define. 2016. "terribly thesaurus" https://smartdefine.org/terribly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, terribly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/terribly/thesaurus/synonyms>.
MLASmart Define. "terribly thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/terribly/thesaurus/synonyms>