To spite is to intentionally annoy, hurt, or upset. Spiteful words or actions are delivered in such a way that it is clear that the person is delivering them just to annoy, hurt, or upset.[1] When the intent to annoy, hurt, or upset is shown subtly, behavior is considered catty.[2]
The Underground Man, in Fyodor Dostoevsky's novella Notes from Underground, is an example of spite. His motivation remains constantly spiteful, undercutting his own existence and ability to live.