Malapert means boldly disrespectful or impudently sassy, especially when someone younger speaks rudely to someone older or in authority. When a student gives a malapert reply to their teacher, they're being cheeky and disrespectful in a way that crosses a line, combining disagreement with sass.

The word carries a stronger punch than simply “rude.” A malapert remark has a clever, almost showing-off quality to it, like the person is trying to demonstrate how witty they are while being disrespectful. Imagine a kid who, when asked why their homework isn't done, replies with an elaborate, sarcastic excuse that makes the whole class laugh but clearly mocks the teacher. That's malapert behavior.

You'll mostly find this word in older books, where characters might call someone a malapert boy or girl. While we don't use it much in everyday conversation anymore, understanding it helps you recognize that certain kinds of sass have been getting people in trouble for centuries. The word itself even sounds a bit like what it means: sharp, pointed, and just a little bit pleased with itself.