numskull or numbskull /numˈskul/ (informal)

A blockhead

numˈskulled adjective

• sportability
• sportable
• sportance
• sportances
• sportcaster
• sported
• sporter
• sporters
• sportful
• sportfully
• sportfulness
• sportfulnesses
• sportier
• sportiest
• sportily
• sportiness
• sportinesses
• sporting
• sporting chance
• sporting chances
• sporting house
• sporting houses
• sportingly
• sportive
• scrobicule