12 entries under extremely topic. ×

6
very(adverb, really, much)
4
unusually(adverb, quantity, enough, measurement)
3
eminently(adverb, pretty, absolutely, very, much)
3
exceptionally(adverb, well, very, really)
2
emphatically(adverb, pretty, absolutely, very, much)
2
extraordinarily
2
powerfully(adverb, pretty, absolutely, very, much)
2
superlatively(adverb, pretty, absolutely, really, much)
2
surpassingly(adverb, pretty, absolutely, very, really)
1
distinctly
1
outstandingly
1
overwhelmingly
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APASmart Define. (2015). vastly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/vastly/thesaurus/synonyms
ChicagoSmart Define. 2015. "vastly thesaurus" https://smartdefine.org/vastly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, vastly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/vastly/thesaurus/synonyms>.
MLASmart Define. "vastly thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/vastly/thesaurus/synonyms>