The word "poshly" refers to something that is done in an elegant, stylish and sophisticated manner. There are several synonyms that can be used interchangeably with the word poshly. Some of these synonyms include luxuriously, stylishly, elegantly, fashionably, refinedly, tastefully, and chicly. Each of these words carries a unique connotation and can be used in various contexts, depending on the situation. For example, we can use the term stylishly and chicly when referring to fashion or clothing, whereas, luxuriously and tastefully are more commonly used to describe interior designs or living spaces. In any case, each of these synonyms conveys a sense of poshness and implies a high-end or sophisticated lifestyle.