| considerably(adverb, quantity, pretty, very, enough) | |
| greatly(adverb, quantity, enough, measurement) | |
| much(adverb, quantity, enough, measurement) | |
| quite(adverb, quantity, pretty, enough, measurement) | |
| notably(adverb, quantity, enough, measurement) | |
| somewhat(adverb, pretty, very, much) | |
| extremely(adverb, quantity, very, enough, measurement) | |
| well(adverb, quantity, pretty, very, enough) | |
| extensively(adverb, much, greatly, highly) | |
| rather(adverb, quantity, pretty, very, enough) | |
| very(adverb, pretty, absolutely, severely) | |
| decidedly(adverb, severely, much, extremely) | |
| immeasurably(adverb, much, greatly, considerably) | |
| widely(adverb, much, greatly, considerably) |
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| APA | Smart Define. (2016). significantly thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/significantly/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "significantly thesaurus" https://smartdefine.org/significantly/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, significantly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/significantly/thesaurus/synonyms>. |
| MLA | Smart Define. "significantly thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/significantly/thesaurus/synonyms> |