N-COUNT
（人）愚笨的，迟钝的
If you say that someone is a dunce, you think they are rather stupid because they find it difficult or impossible to learn what someone is trying to teach them.
例句
Michael may have been a dunce at mathematics, but he was gifted at languages.
迈克尔在数学上可能不太灵光，但在语言方面很有天赋。