Perversity (noun)

1. A state of being morally, mentally or emotionally twisted or distorted.
2. Willful determination to act in opposition to what is right or reasonable.

Origin:

The word "perversity" comes from the latin word "perversus" meaning "turned the wrong way, twisted, crooked". it refers to a state of being morally, mentally or emotionally twisted or distorted.

Examples:

1. He was baffled by the perversity of her behavior.
2. Her perversity was a constant source of frustration for her parents.
3. The perversity of his decision was clear to everyone.
4. The perversity of the situation was hard to understand.
5. The perversity of her actions resulted in her being fired from her job.