numskull

详细解释:n. 笨人, 傻瓜

英语解释：

名词 numskull:

these words are used to express a low opinion of someone's intelligence同义词：dunce, dunderhead, blockhead, bonehead, lunkhead, hammerhead, knucklehead, loggerhead, muttonhead, shithead, dumbass, fuckhead