Also found in: Thesaurus, Legal, Wikipedia.
Infamous by way of being extremely wicked.
[Latin nefārius, from nefās, crime, transgression : ne-, not; see ne in Indo-European roots + fās, divine law; see dhē- in Indo-European roots.]
Switch to new thesaurus
|Noun||1.||nefariousness - the quality of being wicked |
evilness, evil - the quality of being morally wrong in principle or practice; "attempts to explain the origin of evil in the world"
filthiness - moral corruption or pollution; "this deformity and filthiness of sin"
enormity - the quality of extreme wickedness