Pinkly is a unique word that is not frequently used in writing or conversation. As such, there are a limited number of synonyms for this adverb. Some possible options include blushingly, rosily, and flushingly. These alternatives all convey a similar sense of pink or red-coloration or a feeling of embarrassment or bashfulness. Other options might include glowing, radiantly, or brightly, which could be used to describe the color pink or other bright hues. Ultimately, the choice of synonym will depend on the context and intended meaning of the sentence or phrase in which it is used.