unsophisticated adj. + Add to list US //ˌənsəˈfɪstɪˌkeɪtɪd// UK //ʌnsəfˈɪstɪkˌeɪtɪd// un·so·phis·ti·cat·ed SynonymsEtymology Synonyms bumpkinlyhickrusticuncomplicatedunworldlyOrigin From un- + sophisticated.