Here's a breakdown:
* Contempt: A feeling of deep hatred or disapproval.
* Scornful: Showing or expressing contempt or disdain.
* Disdainful: Feeling or showing contempt or disdain.
Examples:
* "He looked at me contemptuously, as if I were beneath his notice."
* "She dismissed his proposal with a contemptuous laugh."
* "The politician's speech was filled with contemptuous remarks about his opponent."
Contemptuously implies a strong sense of superiority and a lack of respect for the person or thing being treated contemptuously.