/ɪˈnɒpərətɪvnəs/ – Noun
Definition: sự không có hiệu lực pháp lý, sự không hiệu lực, sự không hiệu quả.
A more thorough explanation: “Inoperativeness” refers to the state or condition of being ineffective, nonfunctional, or not in operation.
Example: The court found the contract to be unenforceable due to its inoperativeness.