Antiquates, meaning "to make old or obsolete," can be replaced with a handful of synonyms that convey a similar meaning. One such term is "outdated," which suggests that something is no longer useful or relevant. Another possible synonym is "archaic," which evokes feelings of obsolescence and a bygone era. "Outmoded" is another apt replacement, emphasizing the idea of something being out of fashion or no longer in use. Finally, "antiques" themselves can be seen as a synonym for "antiquates," referring to objects that are old and valuable in terms of historical or cultural significance.