IPA: /nəˈfɛəriəs/
KK: /nəˈfɛrɪəs/
Known for being very evil or wicked, often in a way that is shocking or immoral.
The villain in the story had a nefarious plan to take over the world.
Nefarious → It is derived from the Latin 'nefarious' (meaning wicked or villainous), which comes from 'ne-' (meaning not) and 'fas' (meaning right or lawful). The word 'nefarious' describes actions that are not lawful or morally wrong.
Think of 'not lawful' ('ne-' means not and 'fas' means lawful) to remember that 'nefarious' refers to wicked or villainous actions.