jolterhead /jōlˈtər-hed/ or jolthead /jōltˈhed/ (archaic)

1. A large clumsy head
2. A blockhead

• unlaborious
• unlaboured
• unlabouring
• unlace
• unlaced
• unlaces
• unlacing
• unlade
• unladed
• unladen
• unlades
• unlading
• unladings
• unladylike
• unlaid
• unlamented
• unlash
• unlashed
• unlashes
• unlashing
• unlast
• unlaste
• unlasted
• unlastes
• unlasting