DOLT

Dunderhead

• Airhead

• Big galoot

• Big goof

• Birdbrain

• Blithering idiot

• Blockhead

• Bonehead

• Bozo

• Bubblehead

• Buffoon

• Bungler

• Cabbagehead

• Chowderhead

• Chucklehead

• Clod

• Cluck

• Clumsy character

• Definitely no genius

• Dim bulb

• Dim-bulbed sort

• Dimwit

• Dip

• Doofus

• Dull-witted one

• Dullard

• Dumb & Dumber type

• Dumbass

• Dumbbell

• Dummkopf

• Dummy

• Dunce

• Dunce cap earner

• Dunce-cap candidate

• Featherbrain

• Fool

• Fumble-fingers

• Hardly a Mensa candidate

• He's not a Mensa candidate

• Idiot

• Ignoramus

• Imbecile

• Jughead

• Klutz

• Lamebrain

• Lightweight

• Lummox

• Lunkhead

• Mental halfwit

• Moron

• Muttonhead

• Nimrod

• Nincompoop

• Ninny

• No rocket scientist

• Noodlehead

• Numbskull

• Oaf

• One isn't sharp

• One who is not very bright

• One who isn't quick

• One who isn't swift

• Schlemiel

• Simpleton

• Stupid one

• Total idiot

• Unlikely Mensa candidate

• A person who is not very bright