The Oxford Thesaurus An A-Z Dictionary of Synonyms - unsophisticatedadj.

1) na‹ve, inexperienced, simple, childlike, unworldly, innocent, ingenuous, artless, guileless: Is the unsophisticated consumer sufficiently protected against unscrupulous traders? 2 simple, plain, uncomplicated, undetailed, uninvolved, unrefined: The computers of twenty years ago were unsophisticated compared with those of today.