2
immorality
2
iniquity
2
monstrosity(noun, evil, outrage, horror, unpleasantness)
2
sin
2
sinfulness(noun, evil)
2
terribleness(noun, evil, unpleasantness, awfulness, dreadfulness)
1
atrociousness(outrage, wickedness, horror, barbarity, unpleasantness)
1
bane(noun, evil)
1
bestiality
1
brutality
1
calamitousness(noun, evil)
1
corruption
1
crime(noun, wrong, horror, unpleasantness, transgression)
1
damnation(noun, evil)
1
degeneracy
1
detriment(noun, evil)
1
filth
1
grossness(outrage, horror, unpleasantness, awfulness, dreadfulness)
1
hideousness(noun, evil)
1
littleness
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APASmart Define. (2015). nefariousness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/nefariousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "nefariousness thesaurus" https://smartdefine.org/nefariousness/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, nefariousness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/nefariousness/thesaurus/synonyms>.
MLASmart Define. "nefariousness thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/nefariousness/thesaurus/synonyms>