Dullard (noun)

A person who is slow-witted, lacking in intelligence or interest.

Origin:

The word dullard comes from the middle english word "dul" which means "dull" or "stupid" and "ard" which means "person" and it refers to a person who is slow-witted, lacking in intelligence or interest.

Examples:

1. The dullard struggled to understand the complex math problem.
2. The class was bored by the lecture because the teacher was a dullard.
3. The dullard was easily outsmarted by his classmates.
4. He was considered a dullard because he was not very interested in learning.
5. The dullard didn"t understand the joke and didn"t laugh.