Cách sử dụng
The word 'improper' is used to describe something that is not acceptable or not suitable. For example, if you wear your pajamas to school, it is considered improper. Or, if you speak to an adult in a rude manner, it is also considered improper. You can also use this word to describe a situation that is not appropriate, such as an improper use of equipment. It's always best to try and do things in the proper way, rather than doing something that is considered improper.