The state or condition of being villainous; wicked behaviour.(noun)
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Use "villainousness" in a sentence
"Tom was now holding forth hotly upon the "onparalleled rascality and treachersome villainousness" of the Opposition in the"
"The classic movie / TV sci-fi image of giant alien ships hovering over major Earth cities comes from them - and in terms of villainousness, you can't beat their look."