Villainousness is a term that refers to the quality or state of being evil and wicked. There are a number of synonyms for this term that are commonly used in everyday language. These include words like malevolence, wickedness, depravity, malignancy, and malice. Each of these words connotes a sense of evil or wrong-doing, and they can be used interchangeably with villainousness in many situations. Other possible synonyms might include terms like immorality, corruption, iniquity, and sinfulness. No matter which term you choose to use, these words all share a common theme: the idea that someone or something is behaving in an evil or immoral way.