1. It was very unkind of you not to come to see us off. We had so many pieces of luggage. 2. That is a rather unusual way to begin a conversation with a stranger. 3. She was quite unprepared for what she found on her return home. 4. In the silence of the night I heard unhurried steps under my window. 5. It's so unlike him to make a promise and not to keep it. 6. We were told that it was unsafe to cross the river in that place. 7. When I finished speaking he made an unimportant remark. 8. She is quite unable to do without outside help. 9. I believe these changes to be unnecessary. 10. He felt unwell that day and didn't enjoy the long country walk. 11. There was something unpleasant in the way she spoke and laughed.