The word "selectly" has a few different synonyms that can be used depending on the context of the sentence. Some possible options include "carefully," "deliberately," "intentionally," "discriminatingly," "judiciously," and "thoughtfully." Each of these synonyms conveys a sense of purposeful decision-making and thoughtful consideration, which is the essence of the meaning of "selectly." Whether someone is choosing a particular item from a set of options, or making a deliberate choice about a course of action, these synonyms can be used to accurately describe the way they are making their decisions.