9
enormously
9
hugely(adverb, well, very, really, seriously)
8
immensely
6
awfully(adverb, well, very, really, seriously)
5
so much
5
terribly(adverb, well, very, really, seriously)
4
colossally
4
dreadfully
4
gigantically
4
greatly(adverb, well, very, really, seriously)
4
stupendously
4
terrifically
3
frightfully
3
appallingly
3
extremely(adverb, well, very, really, seriously)
3
fearfully
3
highly(adverb, very, really, seriously, greatly)
3
horribly
3
magnificently
3
marvelously
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APASmart Define. (2015). tremendously thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/tremendously/thesaurus/synonyms
ChicagoSmart Define. 2015. "tremendously thesaurus" https://smartdefine.org/tremendously/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, tremendously thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/tremendously/thesaurus/synonyms>.
MLASmart Define. "tremendously thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/tremendously/thesaurus/synonyms>