Insults, Slurs, and Epithets About Intelligence or Aptitude


 * addlebrain
 * addlehead
 * addlepate
 * airhead
 * ament
 * April fool
 * automaton
 * bananahead
 * basket case
 * beefhead
 * beetlehead
 * bimbo
 * birdbrain
 * blatherskite
 * blockhead
 * blubberhead
 * blunderhead
 * bonehead
 * boob
 * bozo
 * brain
 * bubblehead
 * bufflehead
 * buffoon
 * butthead
 * cabbagehead
 * chawbacon
 * chickenbrain
 * chowderhead
 * chucklehead
 * chump
 * clod
 * clodhead
 * clodpate
 * clodpoll
 * clot
 * cluck
 * conehead
 * crackbrain
 * cretin
 * criticaster
 * cuckoo
 * deadhead
 * dimwit
 * ding-a-ling
 * dingbat
 * dingdong
 * ditz
 * dodo
 * dodo brain
 * dolt
 * dolthead
 * donkey
 * doofus
 * dope
 * dork
 * dullard
 * dullhead
 * dumbbell
 * dumb bunny
 * dumb cluck
 * dumbhead
 * dumbo
 * dumdum
 * dummkopf
 * dummy
 * dunce
 * dunderhead
 * dunderpate
 * dupe
 * easy mark
 * egghead
 * fathead
 * fatwit
 * featherbrain
 * featherhead
 * feeb
 * flathead
 * flibbertigibbet
 * fool
 * gaby
 * gawk
 * gudgeon
 * half-wit
 * hammerhead
 * harebrain
 * highbrow
 * idiot
 * ignoramus
 * imbecile
 * jackass
 * jiggin
 * jobbernowl
 * jolterhead
 * jughead
 * klutz
 * know-nothing
 * knucklehead
 * lackwit
 * lamebrain
 * lightweight
 * loggerhead
 * loon
 * lowbrow
 * lumpkin
 * lunkhead
 * meatball
 * meathead
 * mental midget
 * mongoloid
 * moron
 * muddlehead
 * mumpsimus
 * musclehead
 * mushhead
 * muttonhead
 * nincompoop
 * ninny
 * ninnyhammer
 * nitwit
 * no-brainer
 * noddy
 * noodlehead
 * nudnik
 * numskull
 * patzer
 * peabrain
 * peahead
 * pinbrain
 * pinhead
 * pointyhead
 * potatohead
 * puddinghead
 * puttyhead
 * rattlebrain
 * rattlehead
 * retard
 * rockhead
 * sap
 * saphead
 * scatterbrain
 * sciolist
 * shit for brains
 * silly fool
 * simp
 * simpleton
 * slobbering idiot
 * slowpoke
 * softhead
 * stupe
 * submoronic twit
 * sucker
 * techie
 * thickhead
 * thickwit
 * vegetable
 * void
 * witling
 * woodenhead
 * yoyo
 * ziphead