Nefarious

nɪˈfɛəriəs

adjective

wicked, villainous, or criminal

The word 'nefarious' comes from the Latin word 'nefarious' which means 'wicked' or 'abominable'. It is often used to describe acts that are extremely immoral or criminal in nature.

These methods are when, either by some wicked or nefarious ways, one ascends to the principality, or when by the favour of his fellow-citizens a private person becomes the prince of his country.

Niccolò Machiavelli

The Prince

Master Lenehan at this made return that he had heard of those nefarious deeds and how, as he heard hereof counted, he had besmirched the lily virtue of a confiding female which was corruption of minors and they all intershowed it too, waxing merry and toasting to his fathership.

James Joyce

Ulysses

“Outsiders always think there’s something nefarious about the Bene Gesserit,” she said.

Frank Herbert

Chapterhouse: Dune