Synonyms of unacquainted

2 Syllables
kidder, unknown, strange, wide-eyed, wellmeant
3 Syllables
ignorant, amnesic, oblivious, prentice, unfledged, unwitting, innoxious
4 Syllables
unfamiliar, unadorned, unaware, unpracticed, uninjurious, unmalicious, unsuspicious
5 Syllables
uninitiate, unrecognizing, well-intentioned, inexperienced, unaccustomed