untrained
US /ʌnˈtreɪnd/
UK /ʌnˈtreɪnd/

1.
nieprzeszkolony, niewprawiony
not having been taught or developed a particular skill or type of behavior
:
•
The new recruits were completely untrained.
Nowi rekruci byli całkowicie nieprzeszkoleni.
•
She has an untrained eye for art.
Ma niewprawne oko do sztuki.