untrained
US /ʌnˈtreɪnd/
UK /ʌnˈtreɪnd/

1.
non addestrato, non allenato
not having been taught or developed a particular skill or type of behavior
:
•
The new recruits were completely untrained.
Le nuove reclute erano completamente non addestrate.
•
She has an untrained eye for art.
Ha un occhio non allenato per l'arte.