numskull or numbskull /numˈskul/ (informal)

A blockhead

numˈskulled adjective

• slayers
• slaying
• slays
• SLBM
• sld
• SLD
• sleave
• sleaved
• sleaved silk
• sleaves
• sleaving
• sleaze
• sleazebag
• sleazebags
• sleazeball
• sleazeballs
• sleazes
• sleazier
• sleaziest
• sleazily
• sleaziness
• sleazinesses
• sleazy
• sleb
• slebs