Sophisticating can be defined as developing and refining something to make it more complex, elegant, or cultured. There are several synonyms that can be used to replace the word 'sophisticating' including refining, cultivating, improving, enhancing, embellishing, and polishing. All of these words denote the act of enriching and elevating something, whether it be a person's tastes, an object's appearance, or a skill's execution. Refining and cultivating denote a process of improvement, while enhancing and embellishing suggest adding extra elements to improve the whole. Polishing suggests making something more shiny and flawless. All of these synonyms help to convey the idea of making something more sophisticated.