Someone believes they are superior to others because they are more intelligent or better educated

The term for someone who believes they are superior to others due to their intelligence or education is often described as "intellectual elitism" or "intellectual snobbery." This attitude can manifest in a condescending or dismissive behavior towards those perceived as less intelligent or educated. It's important to note that such attitudes can be detrimental to effective communication and collaboration among individuals with varying levels of intelligence and education.