Eggheaded and High-hat

Eggheaded adjective - Much given to learning and thinking.

High-hat and eggheaded are semantically related. In some cases you can use "High-hat" instead an adjective "Eggheaded".

High-hat adjective - Being or characteristic of a person who has an offensive air of superiority and tends to ignore or disdain anyone regarded as inferior.

Eggheaded and high-hat are semantically related. Sometimes you can use "Eggheaded" instead an adjective phrase "High-hat".