無礼

1. Origins, structure, and basic meaning

• Structure: 無礼 is read ぶれい and is a noun and ナ-adjective stem for rude or disrespectful behavior.
• Basic usage: It is used to judge behavior such as leaving without answering or to apologize for one's own rudeness.

2. Common pitfalls and similar expressions

• Sentence patterns
  • Use 無礼だ predicatively to judge behavior, and add な before a noun, as in 無礼な態度.