C2 adjective /nɪˈfɛəriəs/
nefarious
邪恶的,犯罪的,或道德上糟糕的
Meaning
Wicked, criminal, or morally bad.
Example
The police uncovered a nefarious plot to cheat investors.
警方揭露了一个邪恶的阴谋,试图欺骗投资者。