facinorous: Exceedingly wicked, superbly atrocious, undeniably sinful.
A devilishly delightful word to drop in conversations about the current state of the federal government. The alliteration and sibilance of the phrase "the facinorous Senator's senseless fillibuster" just rolls of the tongue.
Facinorous, in some spelling, would also be a great last name for a novel's evil antagonist. "Dr. Facinerris stroked his Van Dyke beard maniacally while his henchmen herded the rabbits toward the cliff."