/fʌˈstreɪʃən/ – noun
Definition: Không thể thực hiện một hợp đồng do sự cản trở không lường trước được.
A more thorough explanation: 1. a feeling of annoyance or impatience because you are unable to do what you want to do, especially because someone or something prevents you from doing it
2. the fact that something prevents plans or efforts from being fulfilled or successful
Example: 1. This can lead to frustration for car drivers, especially in the summer when large queues build up.
2. The parties were excused from performing the contract due to frustration.