knuckleheads
Not the brightest
Knuckleheads is the plural of knucklehead—a stupid or foolish person.
The insult is mild and often affectionate, suggesting someone who does dumb things rather than someone genuinely deficient: Those knuckleheads forgot to bring the cooler.
It implies exasperation more than contempt.
Foolish, unintelligent people
- blockheadsStupid or obstinate people
- boneheadsStubborn, dim-witted people
- numbskullsStupid or foolish people
- nitwitsFoolish, silly people
dopes · dunces · dummies · simpletons · thickheads · birdbrains · meatheads · lunkheads
Amiably foolish people
- goofsCareless small errors
- dorksSocially awkward people
- doofusesFoolish, inept people
- clownsComic performers in costume
yahoos · bozos · stooges · goobers · jokers · rascals · scamps · mischief-makers
Equine crossbreeds or smugglers
- hardheadsStubbornly inflexible people
- bullheadedStubbornly refusing to yield
- pigheadedStubbornly refusing to yield
- obstinateFirmly refusing to yield
mulish · headstrong · willful · contrary · recalcitrant
dimwits
Foolish, unintelligent people
- blockheadsStupid or obstinate people
- boneheadsStubborn, dim-witted people
- numbskullsStupid or foolish people
nitwits · dopes · dunces · dummies · simpletons · thickheads · birdbrains · meatheads · lunkheads · pinheads
goofballs
Amiably foolish people
clowns · yahoos · bozos · stooges · goobers · jokers · rascals · scamps · mischief-makers · troublemakers
mules
Equine crossbreeds or smugglers
- hardheadsStubbornly inflexible people
- bullheadedStubbornly refusing to yield
- pigheadedStubbornly refusing to yield
obstinate · mulish · headstrong · willful · contrary · recalcitrant