Action or conduct befitting, characteristic or typical of, a villain; evil or wrongdoing of a foul, infamous, or shameful nature; extreme…

Cursedness, execrable wickedness.

The condition of being execrably wicked; abominable wickedness.

Grievousness, heinousness.

Deviation from moral or legal rectitude. In later use influenced by enormous, adj. 3: Extreme or monstrous wickedness.

Savage enormity, horrible or heinous wickedness.

Wickedness, heinousness. Obsolete.

The state or quality of being heinous; extreme wickedness, infamousness, atrociousness.

Divergence from a right moral standard; also in stronger sense, gross wickedness, heinousness; = enormity, n. 2. Obsolete.

? = enormity, n.

The quality of being flagitious.

Of an offence, crime, evil, etc.: Heinousness, enormity, outrageousness.

The quality of being atrocious; heinousness.

The quality or condition of being outrageous (in various senses).