Answer: dimwit

AnswerCrossword Clue
DIMWITStupid one
dimwita stupid or silly person
dimwitstupid person
DIMWITNot the brightest crayon in the box
DIMWITNumskull
DIMWITIdiot
DIMWITNot the brightest bulb on the Christmas tree
DIMWITChucklehead
DIMWITMeathead
DIMWITBlockhead
DIMWITDumbbell
DIMWITNot-too-bright sort
DIMWITNumbskull
DIMWITNo Einstein, this one
DIMWITKnucklehead
DIMWITNincompoop
DIMWITDoofus
DIMWITLamebrain