Tinselling is a word that is not very commonly used in the English language, and as such, finding synonyms for it can be quite a challenging task. However, there are a few words that can be used to replace "tinselling" in certain contexts. These words include "decorating," "embellishing," "ornamenting," "beautifying," and "gilding." Each of these words has its unique connotation and implication, which can be suitable for specific circumstances. For example, "decorating" can be used to imply adding a festive touch, while "gilding" can imply the addition of a layer of gold or other precious metal. Ultimately, the various synonyms for "tinselling" offer writers and speakers with a range of options to express their ideas clearly.