Synonyms|678Antonyms|208|Broader|0Narrower|1Related|527
5
severely(adverb, fast, sprightly, seriously, intensely)
5
slowly
5
sluggishly(adverb, seriously, deeply, slowly, laboriously)
4
arduously(adverb, easy, laboriously, strenuously)
4
deep(adjective, adverb)
4
greatly
4
laboriously(adverb, easy, seriously, deeply, slowly)
4
languidly(adverb, slowly)
4
massively(adverb, seriously, deeply, slowly, laboriously)
4
seriously(adverb, fast, sprightly, severely, intensely)
3
burdensomely
3
closely
3
compactly
3
cumbersomely
3
dejectedly(adverb, seriously, deeply, slowly, laboriously)
3
drearily
3
forcibly(adverb, fast, sprightly, severely, seriously)
3
gravely
3
hardly
3
highly
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APASmart Define. (2016). heavily thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/heavily/thesaurus/synonyms
ChicagoSmart Define. 2016. "heavily thesaurus" https://smartdefine.org/heavily/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, heavily thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/heavily/thesaurus/synonyms>.
MLASmart Define. "heavily thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/heavily/thesaurus/synonyms>