What does "Dunderheaded" mean?

"Dunderheaded" is a colloquial or informal term that is not commonly used in formal writing or speech. It is an adjective used to describe someone who is considered foolish, stupid, or slow-witted.

The term is derived from the German word "Dummkopf," which means "fool" or "blockhead." It is often used to describe someone who lacks common sense or intelligence, and who may make silly or foolish decisions as a result.

Here are some example sentences using "dunderheaded":

* "He's such a dunderheaded driver - he always gets lost!"
* "She's so dunderheaded when it comes to math - she can never seem to get the right answer."
* "I can't believe I hired such a dunderheaded employee - they're always making mistakes!"

It's worth noting that "dunderheaded" is not a particularly formal or polite term, and it may be considered derogatory or offensive in some contexts. It's important to use language that is respectful and appropriate when describing others, especially in professional or formal settings.