An example of someone who is disdainful is a person saying they dislike someone just because of their religion.
(comparative more disdainful, superlative most disdainful)
- Showing contempt or scorn; having a pronounced lack of concern for others viewed as unworthy.
- He was disdainful of those he thought of as the little people. He openly sneered at them. They mocked him behind his back.
- She glimpsed at the people whom she had left behind, and smirked in the most disdainful manner towards them.
From disdain + -ful.