Definitions

1. noun

a foolish or stupid person

“He was called a numbskull for not checking the map before getting lost.”

2. noun

a person who is insensitive to pain or danger

“The numbskull climbed the mountain without proper gear, putting himself at risk.”

3. adjective

foolish or stupid

“The numbskull move left the company in financial trouble.”

4. noun

a person who is insensitive to emotions or social cues

“She was considered a numbskull for not realizing her friend was upset.”