/ʌnˈfɔːməˌlaɪzd/ – adjective
Definition: không làm đúng thủ tục quy định, chưa được hợp thức hóa.
A more thorough explanation: “Unformalized” refers to something that has not been made formal or official according to established rules, procedures, or standards. It indicates a lack of formalization or official recognition.
Example: The unformalized agreement between the parties was not legally binding.