"Retro" is a word often used to describe a trend or style inspired by a previous era. However, there are many synonyms that can be used to convey the same meaning. Some options include "vintage," "nostalgic," "old-fashioned," "classic," "antique," "throwback," and "retrograde." Each of these words has a slightly different connotation, but they all capture the idea of something from a previous time period. Whether referring to fashion, design, or music, these synonyms provide a richer, more varied vocabulary for expressing retro-inspired trends.