nə̇ˈfa(a)rēəs, nēˈ-, -fer-, -fār- adjective
Etymology: Latin nefarius, from nefas crime, wrong, from ne- not + fas right, divine law; akin to Latin fari to speak
: heinously or impiously wicked : detestable , iniquitous
nefarious schemes
nefarious practice
race prejudice is most nefarious on its politer levels — H.E.Clurman
Synonyms: see vicious