7
hatefully(adverb, negatively, malevolently)
7
meanly(adverb, unkindly, bitterly, malevolently, maliciously)
6
maliciously(adverb, unkindly, bitterly, malevolently)
6
horribly
5
unpleasantly(adverb, offensively, disagreeably, distastefully)
5
awfully
4
disgustingly(adverb, disagreeably)
4
foully(adverb, malevolently)
4
viciously(adverb, unkindly, malevolently)
4
distastefully(adverb, disagreeably)
4
harshly(adverb, unkindly)
4
horridly
4
ill-naturedly(adverb, negatively, malevolently)
4
malevolently(adverb, malevolently)
4
malignantly(adverb, malevolently)
4
unkindly(adverb, negatively)
3
disagreeably(adverb, disagreeably)
3
evilly(adverb, malevolently)
3
dreadfully
3
grossly
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APASmart Define. (2016). nastily thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/nastily/thesaurus/synonyms
ChicagoSmart Define. 2016. "nastily thesaurus" https://smartdefine.org/nastily/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, nastily thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/nastily/thesaurus/synonyms>.
MLASmart Define. "nastily thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/nastily/thesaurus/synonyms>