knuckleheadUSinformal
numskullinformal
SMART Vocabulary: related words and phrases
Stupid and silly people
airhead
berk
birdbrain
blithering idiot
blockhead
dumb-ass
dummy
dunce
dunderhead
eejit
mutt
need
need your head examinedidiom
nimrod
nincompoop
simpleton
stupid
thicko
tosser
troglodyte
bonehead
adjective[ before noun ]
slanguk /ˈbəʊn.hed/ us /ˈboʊn.hed/
very stupid: 愚蠢的，低能的
That was some bonehead behaviour.那是极其愚蠢的行为。
Not in your lessons—for you were a bonehead—but for deportment you were the class!
Probably I've told one or two fairy stories in my time, when the occasion called for it—you know: sometimes you have to lay things on thick, to impress boneheads.