nontrained
/ˌnɒnˈtreɪnd/ or /ˌnɒnˈtreɪnd/Definitions
1. adjective
not having or showing the skills or knowledge that are needed for a particular activity or profession
“The nontrained staff struggled to respond to the emergency situation.”
2. noun
a person who has not received training or education in a particular skill or profession
“The nontrained worker was assigned to work under the supervision of an experienced colleague.”