/ʌnˈsæŋkʃənd/ – adjective
Definition: không được chấp thuận, không được chuẩn y.
A more thorough explanation: “Unsanctioned” refers to something that is not officially approved, authorized, or endorsed by a governing body or authority.
Example: The company’s decision to hold an unsanctioned event on the premises violated the terms of their lease agreement.