4
enormously(adverb, hugely)
4
greatly
4
hugely
4
monstrously
3
colossally
3
grandly
3
historically(noun, adverb, new, unique, incomparable)
3
massively
3
tremendously
3
vastly
2
considerably
2
gigantically
2
highly
2
immensely
2
largely
2
mightily
2
stupendously
1
astronomically
1
awfully
1
commemoratively
13 years ago|1.7k views|share |citing 
APASmart Define. (2013). monumentally thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/monumentally/thesaurus/synonyms
ChicagoSmart Define. 2013. "monumentally thesaurus" https://smartdefine.org/monumentally/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, monumentally thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/monumentally/thesaurus/synonyms>.
MLASmart Define. "monumentally thesaurus" 28 June 2013. Web. 20 September 2026. <https://smartdefine.org/monumentally/thesaurus/synonyms>