dunce
Dunce is a term used to refer to a person who is slow to learn or lacks intellectual ability. As an adjective, dunce describes behavior or attitudes associated with such a person. The word is considered pejorative and is generally avoided in formal contexts.
The term originates from the medieval philosopher Duns Scotus (c. 1266–1308). In early modern scholastic culture,
Dunce caps were cone-shaped hats used in classrooms as a punishment or public shaming device for students
In contemporary usage, dunce remains a pejorative term and is generally avoided in respectful or formal discourse.