While both "impolite" and "rude" describe behavior that is not considered socially acceptable, there's a subtle difference between the two. "Impolite" generally refers to a lack of good manners or etiquette. It suggests a breach of social norms, but often without malicious intent. "Rude," on the other hand, implies a deliberate lack of consideration for others' feelings. It often involves a more aggressive or offensive behavior. Think of it this way: impolite is a misstep, while rude is a deliberate kick.

Here are some example sentences to illustrate the difference:

• Impolite: "It was impolite of him to interrupt the teacher." (Meaning: He showed a lack of manners by interrupting.)

• Rude: "It was rude of her to make fun of his appearance." (Meaning: Her actions were deliberately hurtful and offensive.)

• Impolite: "Forgetting to say 'thank you' is impolite." (Meaning: It's against social etiquette to not express gratitude.)

• Rude: "He was rude to the waiter, shouting at him for a minor mistake." (Meaning: His behavior was deliberately disrespectful and aggressive.)

• Impolite: "Burping loudly at the dinner table is impolite." (Meaning: This is against the accepted norms of polite table manners.)

• Rude: "She was rude to her classmates, constantly gossiping about them behind their backs." (Meaning: Her behavior was deliberately hurtful and damaging to relationships.)

Notice how the examples of "rude" involve a degree of malicious intent or disregard for others' well-being. Impolite actions are more often simply mistakes in social etiquette. The context is important in determining which word to use, and it often comes down to the speaker's intention and the impact of their behavior on others.

Happy learning!