We don't have any synonyms for uninitiated in yet.
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Definition of uninitiated in:
°Describing someone who, or something which, has not been
initiated.
°(plurale tantum usually as "the uninitiated") Those who have not be
initiated into the secrets of something;
outsiders collectively.
"His jargon-filled talk was gibberish to the uninitiated but clear and concise to practitioners."