Modifies a noun

• deed: Maybe he'd thought to catch the other man at some nefarious deed.

• plot: Can Minuteman and his super chums stop Hitler's nefarious plot?

• purpose: Now Rachel's sure the hidden illegal chimps are being used for a far more nefarious purpose than exotic target practice.

• activity: Now you may be wondering just what nefarious activities these people could possibly get up to.

• mean: I'm gonna have to use nefarious means to bag me a copy of this:D Nice review Noel.

• scheme: Can't even the Man of Steel stop this nefarious scheme?

Modifying Another Word

• somewhat: It has a single drawback: it is somewhat nefarious.