23
considerably(adverb, quantity, pretty, very, enough)
9
greatly(adverb, quantity, enough, measurement, far)
8
importantly(adverb, really, seriously, quite, truly)
8
meaningfully(adverb, substantially, meaningfully)
8
much(adverb, quantity, enough, measurement, far)
7
quite(adverb, quantity, pretty, enough, measurement)
7
essentially(adverb, quantity, enough, measurement, summing up)
7
highly(adverb, quantity, enough, measurement, summing up)
7
remarkably(adverb, quantity, enough, measurement, summing up)
7
substantially(adverb, substantially)
6
notably(adverb, quantity, enough, measurement, far)
5
most importantly
5
somewhat(adverb, pretty, very, far, much)
4
far(adverb, pretty, very, much, fairly)
4
extremely(adverb, quantity, very, enough, measurement)
4
well(adverb, quantity, pretty, very, enough)
4
extensively(adverb, far, much, greatly, highly)
4
grandly
4
indicatively(adverb, meaningfully)
3
largely(adverb, quantity, enough, measurement, summing up)
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APASmart Define. (2016). significantly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/significantly/thesaurus/synonyms
ChicagoSmart Define. 2016. "significantly thesaurus" https://smartdefine.org/significantly/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, significantly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/significantly/thesaurus/synonyms>.
MLASmart Define. "significantly thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/significantly/thesaurus/synonyms>