The phrase "is seemly" refers to something that is considered appropriate or fitting for a certain situation. There are many synonyms that can be used in place of "is seemly" such as suitable, proper, decorous, becoming, and fitting. These words all convey a sense of proper behavior or action in various contexts. Some other synonyms include appropriate, right, acceptable, adequate, and decent. Selecting the right synonym for "is seemly" depends on the specific context of the situation and the desired effect. By utilizing synonyms, writers can add variety to their writing and convey their intended meaning clearly and effectively.