IPA: /ʌnˈmɒdənaɪzd/
KK: /ʌnˈmɒdərnaɪzd/
Describing something that has not been updated or made modern.
The building remained unmodernized, preserving its historical charm.
Unmodernized → It is formed from "un-" (meaning not) and "modern" (from Latin "modernus", meaning of the present time) and "-ized" (meaning to make or become). The word "unmodernized" means not made modern or not brought up to date.
Think of 'not' ('un-') making something 'of the present time' ('modern') — that's why unmodernized means it hasn't been made modern.