Caparisons are ornamental coverings for horses or their riders that are used for decoration or ceremonial purposes. Some synonyms for the word caparisons include trappings, adornments, finery, embellishments, decorations, and accessories. These words can be used interchangeably depending on the context in which they are being used. Other words that can be used as synonyms for caparisons include accoutrements, regalia, and garb. If you are trying to describe a horse that is elaborately adorned or decorated, you might say that it is bedecked or adorned with caparisons. Alternatively, you might describe the rider as wearing caparisoned clothing or adorned in finery.