/ʌnˈsɜːvɪsəbəl/ – adjective
Definition: 1. không thể tống đạt được;
2. không thể sử dụng được.
A more thorough explanation: “Unserviceable” refers to something that is not capable of being used or repaired for its intended purpose due to damage, wear, or other reasons.
Example: The warranty does not cover any damage caused by using the product in an unserviceable condition.