The word "unmodern" refers to something that is not up-to-date or out of fashion. There are several synonyms for this word, such as outdated, obsolete, old-fashioned, archaic, and antiquated. These words describe things that belong to a different era or time period and are no longer relevant or useful in the present. "Unfashionable" is another word that can be used to describe something that is not modern. These words are often used to describe technology, fashion, or cultural practices that have become irrelevant over time. While these words may seem negative, they can also be used to describe things that are of historical or cultural importance, even if they are no longer modern.