uncertified
US /ˌʌnˈsɝː.t̬ə.faɪd/
UK /ˌʌnˈsɝː.t̬ə.faɪd/
1.
không chắc chắn
not having an official document to show that something or someone has reached a particular standard, or that information is true:
:
•
Although the system has tried to attract qualified new teachers, the number of uncertified teachers has risen.