1
faultily
1
felly
1
feloniously
1
fiendishly
1
flagitiously
1
flagrantly
1
godlessly
1
gracelessly
1
grossly
1
harshly
1
hatefully(adverb, malevolently)
1
heavily(adverb, fast, sprightly, severely, intensely)
1
heinously
1
horribly
1
horridly
1
ill-naturedly(adverb, malevolently)
1
immorally
1
infamously
1
inhumanely(adverb, in awful way)
1
iniquitously
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APASmart Define. (2016). viciously thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/viciously/thesaurus/synonyms
ChicagoSmart Define. 2016. "viciously thesaurus" https://smartdefine.org/viciously/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, viciously thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/viciously/thesaurus/synonyms>.
MLASmart Define. "viciously thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/viciously/thesaurus/synonyms>