unmodernized
un mod ern ized |ˌənˈmädərˌnīzd ˌənˈmɑdərˌnaɪzd | ▶adjective not modernized; retaining the original form or features: unmodernized spelling.
unmodernized |ʌnˈmɒd (ə )nʌɪzd |(also unmodernised ) ▶adjective (especially of a building ) not modernized; retaining the original features.