Synonyms of uninitiated

2 Syllables
naïve, nescient
3 Syllables
untrained, unstudious, ignorant, unskilled, unfitted, unversed
4 Syllables
unscholarly, unpracticed, uninstructed, incompetent
5 Syllables
unknowledgeable, unintellectual, uninitiate, unenlightened, inexperienced