uninitiate
/ˌʌnɪnɪˈteɪt/Definitions
1. noun
a person who has not been initiated into something, especially a secret society or a mystery; a newcomer or outsider
“The professor was hesitant to explain complex concepts to the uninitiates in the class.”
2. verb
to introduce someone to a new or complex subject, especially in a way that is easy to understand
“She took the time to uninitiate the new student into the club’s activities.”