nefarious
adjective
[ nɪˈfɛːrɪəs ]
• (typically of an action or activity) wicked or criminal.
• "the nefarious activities of the organized-crime syndicates"
Similar:
wicked,
evil,
sinful,
iniquitous,
villainous,
criminal,
heinous,
atrocious,
appalling,
abhorrent,
vile,
foul,
base,
abominable,
odious,
depraved,
corrupt,
shameful,
scandalous,
monstrous,
fiendish,
diabolical,
devilish,
unholy,
ungodly,
infernal,
satanic,
dark,
unspeakable,
despicable,
outrageous,
shocking,
disgraceful,
knavish,
dastardly,
egregious,
flagitious,
Origin:
early 17th century: from Latin nefarius, from nefas, nefar- ‘wrong’ (from ne- ‘not’ + fas ‘divine law’) + -ous.