Answer: dolt

AnswerCrossword Clue
DOLTBozo
DOLTOne who isn't swift
DOLTFumble-fingers
DOLTDunce cap earner
DOLTPinhead
doltstupid person
DOLTNot the brightest bulb in the pack
DOLTStumblebum
DOLTMeathead
DOLTImbecile
DOLTMoron
DOLTHalf-wit
DOLTOne who isn't quick
DOLTUnlikely Mensa candidate
DOLTSchlemiel
DOLTBig goof
DOLTDumbass
DOLTKlutz
DOLTJughead
DOLTOne who is not very bright
DOLTSlow one
DOLTPumpkinhead.
DOLTNumskull.
DOLTIgnoramus.
DOLTGoose.
DOLTAddlepate.
DOLTWitless one.
DOLTOaf's cousin.
DOLTBooby-prize winner.
DOLTFeatherbrain.
DOLTDummy
DOLTIdiot.
DOLTDunce
DOLTStupid one
DOLTIgnoramus
DOLTDunce-cap wearer
DOLTSimple Simon, e.g.
DOLTDummkopf
DOLTNumbskull
DOLTCabbagehead